Glossary of Important Vinyl Record Terms and Music Related Terminology

Your definitive guide to the essential terminology, abbreviations, and pressing codes used by discerning collectors.

The Rosetta Stone: Decoding Pressing Provenance

To the uninitiated, it’s just a record. To us, it’s a data set. Our glossary is the definitive UK guide to Pressing Provenance. We decode the 'secret language' found in the run-out grooves, identifying Mother/Stamper codes, Contract Pressings, and the legendary 'Porky Prime Cut' or 'Strawberry' mastering marks. Understanding these details is the difference between buying a 'reissue' and owning a 'first-press masterpiece.' We provide the Rosetta Stone for the serious collector.

Unlocking the Language of Vinyl Collecting: A Comprehensive Guide

For those who have ever delved into the world of vinyl collecting, it's no secret that the terminology used can be overwhelming. With a multitude of terms, abbreviations, and definitions, navigating the market can be a daunting task, even for seasoned collectors. To help you decipher the language of vinyl collecting, we've created a glossary of essential definitions, vocabulary, and terms used by regular collectors and audiophiles.

Vinyl Record Terminology

Before diving into the specifics, it's essential to understand the basic terminology of the vinyl world. Mastering these terms is crucial when buying and collecting, as they significantly impact the value and desirability of a particular record. Having this knowledge ensures you can make informed purchasing decisions and secure the best possible items for your collection.

The language of vinyl can be puzzling at times, covering everything from technical specs and physical formats to grading systems and collector jargon. To assist both novice and experienced collectors alike, the summary below covers the technical specs, physical formats, and collector jargon you will encounter throughout our inventory.

Vinyl Record Terminology: Definitions, Slang & Collector Lingo

7-inch Single / 7”
A single pressed on a 7-inch disc that usually contains two tracks—one on the A-side and one on the B-side. The 7-inch single typically plays at 45 RPM.

10-inch Single / 10"
A format commonly used for dance singles, remixes, and EPs. These typically play at 45 RPM or 33⅓ RPM.

12-inch Single / 12”
A single pressed on a 12-inch disc, often used for dance music and extended remixes to allow for higher audio fidelity. These play at 45 RPM or 33⅓ RPM.

16 ⅔ RPM

An extremely rare, slow playback speed occasionally used in the 1950s/60s for spoken word or "talking books".

45
An alternative term used to describe a 7-inch single, named after its playback speed of 45 RPM.

78
An early form of record made from shellac that plays at 78 RPM. Known as "breakables" due to their fragile nature, they were the industry standard before being replaced by the vinyl 7-inch and LP formats.

180g / 200g Vinyl
Heavier-than-average pressings often marketed as "audiophile." The extra weight provides increased durability and a higher resistance to warping compared to standard light-weight pressings.

A-side (AS) / Side 1
For 7-inch singles, the A-side features the primary song intended for radio play. On an LP (Long Play), Side 1 represents the first half of the album’s intended listening sequence.

Abbreviation / Abbrev
Standardised shorthand used in professional listings to describe condition or features (e.g., woc for writing on cover, gfld for gatefold).

Acetate / Lacquer
A one-off reference disc cut by hand in a mastering studio for demonstration or testing purposes. Unlike mass-produced vinyl, acetates are often made of metal coated in lacquer and are very fragile.

Adapter or Adaptor
A small insert used to play records with large "jukebox-style" centre holes (common on US and European singles) on a standard record player spindle.

Alternate Sleeve
A version of the album artwork that differs from the standard release. These are often found on special editions, limited club pressings, or certain reissues.

Alternate Take
A version of a song from a recording session that differs from the final version chosen for the standard release.

Anti-Skate / Antiskating
A turntable adjustment that counteracts the "skating force," which naturally pulls the tonearm toward the centre of the record. Proper adjustment prevents the stylus from skipping and ensures even wear on both groove walls.

Archival Grade
High-end inner sleeves or outer protectors made from chemically inert materials (like Mylar or acid-free paper) designed to prevent "fogging" or PVC off-gassing over long-term storage.

Archive Copy
A record that has been stored in a climate-controlled environment and rarely, if ever, played; essentially "dead stock" in top-tier condition.

Art Sleeve
A record sleeve featuring a pictorial drawing or graphic illustration as opposed to a photograph.

Audiophile Pressing
A high-quality pressing preferred by hi-fi enthusiasts. These are typically manufactured using premium materials and mastering techniques to ensure superior sound fidelity.

B-side (BS) / Side 2
The second side of a record, commonly known as the "flip-side." On a single, it often features experimental tracks, live versions, or "album cuts." On an LP, Side 2 represents the second half of the album.

BB Hole
(See Drill Hole) A small hole drilled through a sleeve or label, marking it as a promotional item or a "cut-out" from a manufacturer’s inventory.

Belt Drive (BD)
A type of turntable where an elastic rubber belt connects the motor to the platter. This is favoured by audiophiles because the belt acts as a shock absorber, reducing low-frequency "rumble."

Bio-vinyl
An eco-friendly record made using raw materials derived from sustainable sources, such as recycled cooking oil, rather than traditional petroleum-based plastics.

Biscuit
The raw, heated "puck" of vinyl material that is placed into the record press before being flattened into a disc.

Blank
Non-playable 7-inch or 12-inch discs, usually made of PVC. These are often used as retro decoration or as "spacers" in collector boxes.

Bonus Disc
An additional record included free of charge with a main release, often featuring extra tracks or a live performance.

Bonus Track
An additional song that does not appear on the standard version of an album.

Bootleg
An unofficial or unauthorised release, often featuring live performances or unreleased studio outtakes. Bootlegs are typically pressed from lower-quality sources and often feature blurry artwork.

Box Set
A collection of three or more records or CDs housed in a dedicated presentation box. These often include deluxe extras like booklets, posters, and lyric sheets.

BPM (Beats Per Minute)
The tempo of a track, often handwritten on the labels of DJ-only or dance records to assist with beat-matching.

Budget Issue
A pressing originally manufactured to be sold at a lower price point than a standard full-price release.

Cartridge
The housing unit attached to the tonearm that holds the stylus. It converts the physical vibrations from the record grooves into electrical signals.

Catalogue Number (Cat No.)
The manufacturer's unique reference number found on labels and sleeves. It is essential for identifying the specific edition or pressing of a record.

CD
Compact Disc. A digital optical disc format used to store and play high-quality sound recordings.

Centre / Center
The middle portion of the record where the label is located. Can be a "solid centre" (standard UK) or a "large hole" (common on US jukebox singles).

Coloured Vinyl
Any record pressed in a colour other than standard black. Variations include solid colours, transparent "splatter" effects, marbled textures, and "split-colour" designs.

Company Sleeve
A generic, branded sleeve provided by the record label, usually featuring the label's logo rather than artist-specific artwork.

Contract Pressing (Contract Manufacturing)
A record manufactured by one company on behalf of another. This usually occurs when a label's own plant cannot meet demand, leading them to "farm out" production to rival plants (e.g., Decca pressing for EMI).

Corner Ding
A minor dent or crease on the corner of a record sleeve, typically caused by storage or shipping.

Counterfeit
An illegal copy designed to deceive buyers into thinking it is an authentic release. These are usually made of substandard materials and lack the correct matrix numbers.

Counterweight
The adjustable weight located at the rear of the tonearm, used to set the correct tracking force for the stylus.

Crate Digging (Digging) / DITC
The act of searching through bins, crates, or boxes of records—typically in second-hand shops or fairs—to find rare or interesting titles. "DITC" stands for "Digging In The Crates."

Custom Inner Sleeve
A specially designed paper or card inner sleeve featuring lyrics, credits, or artwork unique to that specific album release.

Dead Wax / Dead Wax Message
The smooth area of vinyl between the final track and the record label. It contains matrix numbers and sometimes secret "dead wax messages" etched by the cutting engineer.

Deck
An alternative slang term for a turntable or record player.

Decorative
Blank, non-playable 7-inch or 12-inch discs usually made of PVC. These are used for DIY projects or wall art rather than for playback.

Deleted / Out of Print (OOP)
A term for a record that is no longer commercially available from the manufacturer.

Deletion Cut
Also known as a "cut-out," this is a mark on a record sleeve (like a saw-cut notch or clipped corner) indicating it has been removed from a label's active catalogue.

Demo
A demonstration record not intended for commercial sale. Often used for promotion or radio play.

Die-cut Sleeve
A sleeve with a hole cut into the centre to reveal the record label or artwork underneath.

Digipak

A type of hybrid packaging (part card, part plastic tray) more common for CDs but sometimes used for deluxe CD/Vinyl sets.

Digital Remaster
A record re-pressed from a digital source that has been "cleaned up" or enhanced for modern audio equipment.

Dinked
Historically, this refers to punching out the centre of a 7-inch record for jukebox use. More recently, Dinked Edition refers to exclusive, high-quality limited edition vinyl releases sold through a specific network of independent UK stores.

Direct Drive (DD)
A turntable where the motor is located directly beneath the platter. This provides high torque and near-instant startup, making it the industry standard for DJs.

Direct-to-Disc
A high-end recording method where the performance is cut directly into a master lacquer in real-time, bypassing magnetic tape for maximum audio fidelity.

Dirtbox
Slang for a DJ's setup, typically referring to the combination of turntables and a mixer.

Dish / Dished
A type of warp where the entire record is curved into a bowl shape. This usually occurs during the manufacturing process due to uneven cooling.

Distortion
A loss of audio fidelity, often caused by a worn stylus, poor pressing quality, or incorrect tracking force.

DJ-only
A record issued exclusively for radio play or professional DJs, often containing alternate edits or remixes.

Double A-side (AA)
A single featuring two primary songs of equal importance, one on each side, with no designated B-side.

Double Album / Double LP (2LP)
A release consisting of two LPs, typically used for longer albums or deluxe editions.

Double Groove / Multisided Record
A rare pressing with two separate grooves cut concentrically on the same side. Depending on where the needle lands, the listener hears one of two different tracks.

Download Code
A card or sticker included with a vinyl album providing a code to redeem a digital copy of the music.

Drill Hole / Import Hole
A small hole drilled through a sleeve or label. This usually indicates the record was an import or a manufacturer "cut-out."

Dust Sleeve
Another name for the paper or plastic inner sleeve that protects the vinyl record inside the main jacket.

Earworm
Slang for a catchy piece of music or "vocal hook" that sticks in the listener's head long after the record has stopped. DJs often seek out earworm tracks to ensure their sets remain memorable.

Eco-vinyl
A more sustainable alternative to traditional petroleum-based PVC. This is an umbrella term for records manufactured with a lower carbon footprint.

Eco-mix Vinyl
A record pressed using the "offcuts" and leftover pellets from previous vinyl runs. Because the colours are mixed randomly, every disc in an Eco-mix run is unique, often resulting in marbled or "lucky dip" colourways.

Electroplating
The multi-stage chemical and electrical process used to create the metal Masters, Mothers, and Stampers required to mass-produce vinyl records.

Embossed Sleeve
A jacket featuring raised designs, patterns, or text. This provides a tactile, premium feel to the packaging (e.g., the original UK pressing of The Beatles "White Album").

Envelope Picture Sleeve
A picture sleeve designed with a fold-over flap, similar to a mailing envelope, typically made of paper or light card.

EP (Extended Play)
A "mini-album" that typically contains four to six tracks. Shorter than an LP but longer than a single, EPs usually play at 45 RPM and come in a picture sleeve.

EPK (Electronic Press Kit)
A promotional package for media use, often including a short video documentary, high-resolution images, and artist biographies.

Etched Disc
A record that features music on one side, while the other side has no grooves. Instead, the "blank" side features decorative graphics or text etched directly into the vinyl with a laser.

Excellent (EX)
A staple of the UK Record Collector Grading System. An EX record shows slight signs of wear and perhaps very light surface scuffs, but audio quality is not affected. For most UK collectors, this is the "gold standard" for a high-quality used record.

Exclusive
A release available only through a specific retailer or independent store network. These often feature unique coloured vinyl, signed inserts, or alternate artwork.

Export Issue
A record or CD pressed in one country (e.g., the UK) specifically for sale in overseas markets. These often feature different catalogue numbers or unique label designs.

Factory Custom Pressing
An unofficial or "private" record that was nevertheless manufactured using the professional equipment at an official pressing plant.

Fair (F)
A grading used for records in rough, compromised condition. They will have deep scratches, significant surface noise, and may be barely listenable. Generally only of value as a "collection filler" for extremely rare titles.

First Pressing
The initial batch of records produced from the very first set of stampers. These are highly sought after by collectors for their proximity to the original master recording and their historical significance.

Flexidisc
A very thin, flexible plastic sheet used for audio playback. These were often given away free with music magazines (like Flexipop!) or used for promotional advertising.

Flipback Sleeve
A classic construction style common in the 1950s and 60s, where the outer flaps of the front cover are folded over and glued onto the back of the jacket.

Foldout Sleeve
A sleeve designed to open up multiple times, often revealing a large-scale poster or extensive panoramic artwork.

Foxing

A term for the small, rusty-brown spots or "freckles" found on paper sleeves and inner liners, caused by a chemical reaction between high humidity and metallic impurities in the paper. Common on older UK pressings, especially those with white or uncoated card sleeves.

• Planet Earth Records Pro Tip: While foxing is strictly a cosmetic issue that doesn't affect the sound, it is permanent and cannot be cleaned off. To prevent it from spreading, ensure your storage area is well-ventilated and away from damp walls. For high-value items like the White Album or early Vertigo gatefolds, heavy foxing can drop the Record Collector grade by an entire category

Freebie
A promotional record given away free of charge, often with a magazine, at a concert, or as a "bonus" with another purchase.

Gatefold Sleeve (Gfld)
A jacket that opens out like a book. These allow for expanded artwork and liner notes and are the standard packaging for double albums.

Gimmick Sleeve

A sleeve with complex physical features, such as moving parts, pop-ups, or unique die-cuts (e.g., the original Led Zeppelin III rotating wheel).

Goldmine Grading Standard

The specific grading system used by Discogs and many international sellers, which serves as the foundation for grades like VG and NM.

• Planet Earth Records Pro Tip: Be careful—a Goldmine "VG" is actually a mid-to-lower grade (showing significant wear), whereas a Record Collector "VG" is often slightly better. Always check which system a seller is using to avoid disappointment when that "Very Good" record arrives with surface noise.

Good (G / G+)
A grade indicating significant wear. A "Good" record plays through without skipping but has noticeable surface noise and visible scratches. "G+" is slightly better, but both represent well-used copies.

Grading
The universal system used to define a record's condition. The scale typically runs: Mint (M), Near Mint (NM), Excellent (EX), Very Good Plus (VG+), Very Good (VG), Good (G), Fair (F), and Poor (P).

Groove
The continuous spiral track cut into the vinyl that contains the recorded audio information.

Half-Speed Master
A high-fidelity mastering process where both the source tape and the cutting lathe run at half their normal speed. This allows the cutting stylus twice as much time to carve intricate frequencies, resulting in superior detail and stereo imaging.

Hidden Gem
Slang for an undervalued or overlooked record that offers exceptional music or sound quality. These are the prizes of "crate digging."

Hidden Track
An unlisted song, usually placed at the very end of a disc after a period of silence or hidden within the "lock groove."

Holy Grail
A term for an incredibly rare or elusive record that a collector has spent years searching for.

Hype Sticker
A promotional sticker affixed to the outer shrink-wrap or sleeve, highlighting "Limited Edition," "Coloured Vinyl," or "Includes Hit Single" to catch the buyer's eye.

Import
A record pressed in one country and shipped to another for sale. Japanese and US imports are particularly prized in the UK for their high pressing standards and unique packaging (like the Obi Strip).

Import Cut / Cut-out
A record imported from a different market (often the US) that has been marked as "deleted" stock with a saw-cut notch or clipped corner.

Indie Exclusive / Indies-only
A limited release available only through independent record shops, usually intended to support "Record Store Day" or local "Indie" retailers.

In-house Pressing
A record manufactured by a label's own internal pressing plant (e.g., a 1960s EMI record pressed at Hayes) as opposed to a Contract Pressing.

Initial Pressing
Often used interchangeably with First Pressing, but specifically refers to the very first run of a new release before any alterations to the artwork or matrix are made.

Inlay
The printed literature found inside a record or CD, such as lyric sheets, fold-out posters, or signed art prints.

Inner Groove Distortion (IGD)
A natural loss of audio fidelity that can occur as the stylus reaches the end of a side. Because the circumference of the groove is smaller near the label, the "crowded" frequencies can sometimes sound harsh.

Inner Sleeve
The protective sleeve (paper, card, or poly-lined) that holds the vinyl inside the outer jacket. A "printed inner" features artwork, while a "generic" is plain.

Insert
Any additional item included in the packaging, such as postcards, stickers, or "one-time-use" download codes.

Interview Disc
A record containing spoken-word content, such as press conferences or artist interviews, often issued for promotional or radio use.

Inventory Number
A unique store-specific code (separate from the Catalogue Number) used to track and locate a specific copy within the store's climate-controlled vault.

Jacket
The external card pocket that houses the inner sleeve and vinyl. It typically features the primary artwork, tracklisting, and production credits.

Jukebox Centre
A 7-inch record with a large centre hole (approx. 38mm) designed for the mechanical grippers and spindles of vintage jukeboxes.

Jukebox Issue / Promo
A record specifically pressed for public play in bars and diners. Unlike commercial releases, Jukebox Promos were distributed to gauge public interest. They usually feature plain labels with "Promotional Copy" text and lack the standard picture sleeve artwork.

Label
The paper circle at the centre of the record. It displays the artist, title, track timings, and the vital Catalogue Number.

Laminated Sleeve
A jacket treated with a high-gloss plastic film. This was the standard for UK LPs in the 1960s and early 70s, providing a durable, shiny finish that resisted dirt and wear.

Lathe Cut
A record made by cutting grooves directly into a blank disc one-by-one, rather than being pressed from a metal stamper. These are usually produced in extremely small runs (often under 50 copies) and are highly collectible due to their rarity.

Laser Turntable / Optical Turntable
A high-end player that uses a laser beam instead of a diamond stylus to read the grooves. This allows for zero-contact playback, eliminating record wear and mechanical "rumble."

Lead-in Groove
The wide, silent spiral at the outer edge of the record where you first lower the stylus to begin playback.

Licorice Pizza
Vintage 1960s/70s slang for a vinyl record, referring to its black colour, round shape, and "tasty" musical content.

Limited Edition (Ltd Ed)
A release produced in a strictly defined, one-off quantity. These are often Numbered (stamped or hand-written) to verify their place in the run.

Liner Notes
The descriptive essays or historical information found on the back of a sleeve or inside a gatefold. These provide context about the recording sessions and the artist.

Liquid Vinyl
A novelty "Sandwich" pressing where two translucent discs are sealed together with a moving liquid core (often coloured oil or water). These are rare, visually striking collector's items.

Locked Groove

A deliberate "infinite loop" at the end of a record side where the needle never reaches the label (famously used by The Beatles on Sgt. Pepper).

LP (Long Play)
The standard 12-inch album format. It typically spins at 33⅓ RPM and contains approximately 20–25 minutes of music per side.

LP x 2 / LP x 3
Common abbreviations for double or triple albums, where the music is spread across multiple discs to maintain audio fidelity or include bonus material.

Master Release

A Discogs term that groups all different versions (pressings, reissues, promos) of a single album into one parent entry for easier navigation.

Mastering / Cutting
The final technical stage of audio production where the "Master Tape" is prepared and EQ'd specifically for the physical limitations of vinyl before being cut into the Lacquer.

Matrix Number

A unique alphanumeric code stamped or hand-etched into the Run-out Groove (dead wax). This is the "DNA" of the record, used by collectors to verify the exact pressing plant, lacquer cut, and edition.

• Planet Earth Records Pro Tip: Never rely solely on the sleeve or label for dating a record; the Matrix Number is the only definitive way to identify a "First Pressing". Look for the lowest suffix (e.g., -1U or -A1) to confirm an earliest-possible cut from the original master tapes. This often commands a significant price premium over later re-cuts or contract pressings.

Maxi-Single
Usually a 12-inch single that features several versions of a song, such as the "Extended Mix," "Radio Edit," and "Instrumental."

Megamix
A continuous medley of several different tracks, seamlessly blended together. These are most common on dance and pop 12-inch records.

Mid-Price Release
A later pressing of a successful album sold at a lower price point than the original "Full Price" issue.

Mint (M)
The highest possible grade. A Mint record is absolutely perfect, usually unplayed, and often still in its original factory seal.

Mispressing
A manufacturing error where the wrong music is pressed onto a disc, or labels for a different artist are applied. These are often withdrawn quickly, making them accidental collector's items.

Mistracking
An audio fault where the stylus fails to maintain contact with the groove walls, causing "fuzziness" or distortion. This is often caused by a worn needle or incorrect Tracking Force.

MM / MC
The two main types of phono cartridges: Moving Magnet (standard) and Moving Coil (high-end audiophile).

Modifiers (+) / (-)
Symbols used to fine-tune a grade. For example, VG+ indicates a record that is better than Very Good but not quite Excellent. Note: In the UK, VG++ is often used interchangeably with Excellent (EX).

Mono
Single-channel audio where all sound comes from one source. Many collectors prefer 1960s Mono Pressings (like those by The Beatles or Kinks) as they often have more "punch" and were the primary focus of the original mix.

Mother
A metal "positive" disc created from the Master Lacquer. The Mother is used to produce the Stampers that actually press the vinyl.

Multi-Gatefold
A deluxe sleeve that opens out into three or four panels. These are typically used for triple albums or special commemorative editions to showcase expansive artwork.

Near Mint (NM / M-)
A record that appears brand new but may have been played once or twice. It has been handled with extreme care and shows no visible scuffs or marks.

Needle (Stylus)
The diamond-tipped element that tracks the groove. It is the only part of the turntable that should ever touch your vinyl.

NOL / RE / RM

Professional shorthand for No Original Label (often for generic sleeves), Reissue, and Remastered.

Non-Fill
A pressing defect where the molten vinyl fails to completely fill the grooves of the stamper. It appears as "dull" or "frosted" patches and results in a distinct, rhythmic "zipper" crackle sound during playback.

Not For Sale
Legally-required text found on Promotional Copies (Promos). This was used by labels to prevent retail shops from selling free media samples as new stock.

Now Spinning
A popular social media term used by collectors to showcase the record currently on their turntable.

Numbered
A limited edition pressing where each copy features a unique, individual number (e.g., "No. 0042 of 1000"). These can be machine-stamped or hand-written.

Obi Strip
A paper band wrapped around the spine of a record sleeve, originating from Japan. It typically contains marketing information and tracklists in Japanese. These are highly sought after by collectors as they are often missing from used copies; their presence significantly increases the value of an import.

OIS

A vital abbreviation for Original Inner Sleeve, which is highly valued by collectors compared to a generic replacement.

One-sided Disc
A record that features music on only one side. The reverse side is either left blank, features a decorative Etched design, or has a silent "lock" groove.

Original Pressing
The very first commercial run of a record, manufactured from the initial set of masters. These are the most sought-after editions for collectors due to their superior sound fidelity and historical provenance.

Out Of Print (OOP)
An abbreviation for a record that is no longer being manufactured. This applies to titles that have been officially deleted from a label's active catalogue.

Outer Sleeve
This can refer to the main card Jacket that houses the vinyl, but in collector circles, it more commonly describes the protective polythene or plastic sleeve used to prevent shelf wear and Ring Wear.

Overrun / Underrun

A manufacturing term where the final shipment from a plant may be 10% more or less than ordered due to varying scrap rates during pressing.

Overstock
Records that were manufactured in higher quantities than were originally sold. These are often discovered decades later as "New Old Stock" (NOS) or sold off at a discount with a Deletion Cut.

P/S
A common abbreviation for a Picture Sleeve.

Picture Disc
A record where a graphic image is sealed within clear vinyl. While visually striking and highly collectible, they can sometimes suffer from higher surface noise compared to standard black vinyl.

Picture Sleeve
The outer card cover featuring artist artwork, tracklistings, and credits. Originally, many 7-inch singles were issued in generic company sleeves, making those with original picture sleeves much rarer.

Plain Sleeve
A generic white, black, or brown paper/card sleeve with no artwork, often used for Promos or 12-inch dance singles.

Play-Grading

The process of grading a record by listening to it entirely, rather than just a visual inspection. This is the highest level of service a specialist like Planet Earth Records provides.

Plinth / Chassis
The heavy base of the turntable that supports the motor, platter, and tonearm. A high-quality plinth is designed to dampen external vibrations.

Platter
The rotating circular disc that holds the record. It is driven by either a belt (Belt Drive) or a motor (Direct Drive).

Poor (P)
The lowest grade in the vinyl scale. A "Poor" record is in terrible condition—cracked, badly warped, or deeply scratched—making it almost impossible to listen to. These are generally only kept as "space-fillers" for the rarest items.

Porky Prime Cut
The professional signature of George “Porky” Peckham, one of the most legendary mastering engineers in British music history. If you find "A Porky Prime Cut" etched into the Run-out Groove, it is a guarantee of a high-quality, dynamic, and "hot" cut that sounds superior to standard pressings.

Poster Sleeve
A specialised sleeve designed to be unfolded into a large-scale poster.

Pre-Amp / Phono Stage
A device that boosts the tiny electrical signal from the turntable cartridge to a "line level" that can be played through a standard amplifier and speakers.

Press Kit
A promotional package sent to journalists or radio stations. It usually includes the record, professional photographs, and a "biography" or press release detailing the new music.

Private Pressing
A record independently funded and distributed by an artist or a small local label rather than a major record company.

Promo
Short for "Promotional Copy." These records were sent to DJs and radio stations before the official release date. They are often marked "Not For Sale" and can be highly collectible.

Push-out Centre
A 7-inch single designed with a perforated centre. The 3 or 4-pronged middle can be "pushed out," turning the small-hole record into a large-hole record for use in a jukebox.

PVC Fogging (Misting / Clouding)
A chemical reaction where a record reacts with a cheap PVC outer sleeve over time. This creates a "milky" or "cloudy" film on the vinyl surface that causes significant surface noise and cannot be cleaned off. Professional collectors avoid PVC in favour of polythene or Mylar.

• Planet Earth Records Pro Tip: This is a permanent chemical reaction, not a surface stain—no amount of professional cleaning will "wash off" true PVC fogging. To protect your high-value rarities, immediately discard any heavy, stiff, or "smelly" clear plastic outer sleeves. Replace them with archival-grade Polyethylene (PE) or Polypropylene (PP) sleeves, which do not "off-gas" and will keep your vinyl crystal clear for decades.

Quadrophonic
A four-channel surround sound format from the 1970s. It required a specific hardware setup to provide a more immersive experience than standard stereo.

Quadruple Vinyl (4LP)
A set containing four LPs (eight sides of music). An example would be the expanded box set editions of The Beatles Anthology.

Re-recording
A new version of a song that has been recorded again by the original artist or a different group, often with updated production or arrangements. This is different from a Remaster, which uses the original tapes.

Record Changer / Autochanger
A mechanical turntable (common from the 1950s to 70s) that allows a stack of records to be loaded onto a long spindle. When one record finishes, the next one automatically drops onto the platter.

Record Collector Grading System (RCGS)
The definitive UK industry standard for evaluating vinyl condition, established by Record Collector magazine in 1980. It is the "Gold Standard" for the Rare Record Price Guide. Unlike the US-based Goldmine scale, the UK system includes the vital Excellent (EX)grade, identifying records that show signs of play but have been maintained to a high standard with no lessening of audio quality. This seven-tier scale (Mint, Excellent, Very Good, Good, Fair, Poor, Bad) is the benchmark for professional UK dealers and serious investors.

Record Player
An all-in-one unit that includes the turntable, amplifier, and speakers in a single chassis.

Record Store Day (RSD)
An annual global event celebrating independent record shops. It features hundreds of exclusive, limited-edition vinyl releases available only on that day.

Reissue
A new pressing of a title that was previously deleted or out of print.

Remaster
A process where the audio from an original recording is digitally or analogically enhanced to improve sound quality for a new release.

Remix
An alternative version of a track where the original stems (vocals, drums, etc.) have been rearranged, often with new elements added.

Removable Centre
A plastic insert (sometimes called a "spider") used to play large-hole jukebox records on a standard small-spindle turntable.

Repress / Re-pressing
A subsequent run of a record that is still in print. Unlike a Reissue, a repress usually happens shortly after the first run to meet high demand.

Reverse Board Sleeve
A jacket printed on the raw, uncoated side of the cardboard, resulting in a matte, textured, and "earthy" feel.

Ring Wear
A circular pattern of wear visible on a sleeve, caused by the record inside rubbing against the card over many years. This is a common sign of age in used vinyl.

RL (Robert Ludwig)
The initials of legendary US mastering engineer Robert Ludwig. His "RL" etch in the dead wax is most famous on the 1969 "Hot Mix" of Led Zeppelin II, which is highly prized for its incredible bass and volume.

RPM (Revolutions Per Minute)
The speed at which the record must spin for correct playback. The three standard speeds are 33⅓ (LPs), 45 (Singles), and 78 (Vintage Shellac).

Run-out Etching

Specifically distinct from a matrix number; these are the hand-etched messages or "Easter eggs" left by engineers.

Run-out Groove
The silent spiral at the end of a record side that leads the needle toward the label. This "Dead Wax" area is where you find matrix numbers and engineer signatures.

Sampler
A compilation album featuring various tracks from different artists, usually released by a specific record label to showcase their roster. These were often sold at a "Budget" price to encourage fans to discover new music.

Scratches

• Hairlines: Extremely thin, light marks—often only visible under a bright light—that rarely affect audio quality.
• Surface Marks / Scuffs: Often called "paper scuffs," these are faint, non-feelable marks caused by sliding a record in and out of a paper inner sleeve. They are usually cosmetic.
• Feelable Scratches: Deeper marks that can be felt with a fingernail. These typically result in audible "pops" or "clicks" on every revolution and can cause the stylus to skip or repeat.

Sealed / Shrink-wrapped
An item still in its original factory-applied cellophane. In the collector market, "Still Sealed" (SS) copies of vintage records command a significant premium.

Seam Split
A common defect where the edge or spine of the card jacket has physically split open, usually due to the weight of the record shifting during transit or poor storage.

Shaped Disc
A record cut into a non-circular shape (e.g., a heart, a star, or an artist's silhouette). These are almost exclusively Picture Discs and are highly prized for their visual appeal.

Shellac
The brittle, resin-based material used for records before the invention of vinyl. Primarily used for 78 RPM discs, shellac is extremely fragile and will shatter if dropped—hence the nickname "breakables."

Sibilance
A harsh, distorted "hissing" sound on vocal frequencies (specifically "S" and "T" sounds). This is often a result of poor mastering or a worn stylus that needs replacing.

Silent Groove
A track with no recorded audio, often found on the "blank" side of a one-sided record or used as a divider between experimental tracks to provide a moment of total silence.

Silver Label
Refers to a specific era of certain UK labels, such as the 1960s black-and-silver Parlophone or Columbia labels. Identifying these specific colourways is a key part of verifying a First Pressing.

Single
A record featuring one primary track per side. While most commonly 7-inch (45 RPM), the term also applies to 12-inch "Maxi-singles."

Skip
A major audio defect where the needle jumps out of the groove and lands in the next one. This is usually caused by a deep Feelable Scratch or a piece of trapped debris.

Slab / Wax
Common collector slang for the physical vinyl record itself (e.g., "A heavy slab of 180g wax").

Slipmat
A felt or synthetic mat that sits on the platter. While audiophiles use rubber or cork mats to grip the record, DJs use "slipmats" to allow the record to slide freely for "cueing" and "scratching" without stopping the motor.

Solid Centre
A 7-inch record with a small, non-removable centre hole (the UK standard), as opposed to a Push-out or Jukebox centre.

Spider Adapter
A small plastic or metal insert that snaps into a large-hole 45 RPM record, allowing it to be played on a standard small-spindle turntable.

Spindle / Spindle Hole
The metal pin at the centre of the platter. Spindle Marks (tiny, faint "spider-leg" scratches around the hole) indicate a record has been played frequently and the spindle was "missed" when placing it on the player.

Spindle Marks (or Spindle Trails)

These are the fine, often shiny, hairline traces or "trails" on the paper label immediately surrounding the centre hole. They are caused by the turntable spindle repeatedly "searching" for the hole during placement.

• What they tell you: A "tracery" of many marks indicates a well-loved record that has been played frequently, increasing the likelihood of groove wear even if the vinyl looks clean.
• Grading Impact: A record cannot be graded as Mint if these marks are present. For most strict graders, even one or two faint marks will push a record from Near Mint (NM) down to Excellent (EX) or Very Good Plus (VG+). 

Spindle Wear

This is a more advanced stage where the centre hole itself has become enlarged, "chipped," or misshapen from heavy use. In extreme cases, a white ring may form where the label has physically torn or pushed away from the hole.

• Planet Earth Records Pro Tip: Always inspect the label under a strong, angled light; spindle trails are often invisible in flat or dim lighting. For a high-value rarity, a total absence of spindle marks is a "holy grail" indicator that the record may be unplayed or handled with "international jet-set DJ" precision.

Spine
The narrow edge of the record jacket that faces out when stored on a shelf. It typically displays the artist, title, and Catalogue Number.

Stamper
The final metal plate used in the press to stamp the grooves into the hot vinyl Biscuit. A single set of stampers can typically produce about 1,000 high-quality records before they need to be replaced.

Stapled-in (Booklet/Sleeve)

A premium packaging feature where a multi-page booklet or lyric sheet is physically stapled into the spine of a Gatefold Sleeve. This was a hallmark of deluxe 1960s and 70s UK pressings, such as the original Magical Mystery Tour EPs or early Vertigo Swirl progressive rock albums.

For the serious collector, "Stapled-in" signifies a complete, original artifact, but its value is heavily dependent on the state of the hardware. Over decades, the original metal staples are prone to rusting, which can lead to "transfer" (staining the surrounding paper) or cause the paper to perish at the fold. This often results in loose or detached pages, significantly compromising the integrity of the sleeve. At Planet Earth Records, we consider staples to be as vital as the vinyl itself; if the staples are missing, replaced, or the booklet has pulled away, the Record Collector grade and market value drop significantly.

• Planet Earth Records Pro Tip: When inspecting a "Stapled-in" item, always check the centre-fold for "migration" (rust stains spreading onto the paper). To preserve the value of a high-end rarity, ensure the item is stored in a low-humidity environment to prevent further oxidation of the original staples.

Stereo
Two-channel audio that provides a sense of space and direction (Left and Right). True Stereo means the audio was captured separately at the source, unlike "Electronic Stereo" which is a reprocessed mono recording.

Stitching

A defect appearing as "silver dots" or chains in the record's reflection. It occurs when both sides of the mould release simultaneously, often creating a crackly sound.

Strawberry
The hallmark of Strawberry Mastering (1978–1983). Finding "STRAWBERRY" stamped or etched in the dead wax is a key indicator of high-quality lacquer cutting, famously found on UK pressings of Led Zeppelin and The Smiths.

Styrene
A cheaper, injection-moulded plastic used for many US 7-inch singles in the 50s–70s. Unlike vinyl, styrene is brittle and wears out much faster, often resulting in "shredded" high frequencies if played with a heavy needle.

Stylus (Needle)
The diamond or sapphire tip that tracks the grooves. It is the most critical component for sound quality and must be replaced periodically to prevent record wear.

Sulphur Marks
Faint grey or white "staining" sometimes found on vintage vinyl, caused by a chemical reaction between the record and the original paper or plastic inner sleeve over several decades.

Surface Noise
Unwanted sound—such as crackle, hiss, or pops—heard during playback. While some is inherent to the format, excessive noise is usually caused by dirt, static, or wear.

Test Pressing (TP)
A handful of initial copies (usually with plain white labels) produced to check the audio quality before mass production begins. TPs are extremely rare and highly collectible.

Texture / Textured Sleeve
A jacket featuring a specific physical finish, such as a "sandpaper," "leather," or "linen" effect. These are common on early UK pressings (e.g., Vertigo or Harvest labels) and are highly prized by collectors.

Tip-on Sleeve
A premium jacket where the printed artwork is a separate sheet of paper glued ("tipped-on") to a heavy cardboard shell. Common on vintage US imports and high-end modern reissues.

Title Cards (Strips)
Small card labels printed with the artist and song title, designed to be inserted into the display window of a jukebox.

Tonearm
The pivoting arm that holds the cartridge and stylus, allowing it to track accurately from the outer edge of the record to the centre.

Tracking Error
When the tonearm is not perfectly aligned with the groove, causing a loss of stereo imaging and increased distortion. Correct Tracking is essential for accurate, distortion-free sound.

Tracking Force
The specific amount of downward pressure (measured in grams) exerted by the stylus on the record. Too little causes skipping; too much causes excessive wear.

Translucent Vinyl
A record that appears black on the shelf but shows a deep red or brown colour when held up to a strong light. This is common on certain high-quality 1980s pressings (e.g., A&M or Pye records).

Tri-centre
A rare, triangular-shaped push-out centre found on UK 7-inch singles from the 1950s (notably on London and Decca labels).

Tri-fold / Triple-Gatefold
A deluxe jacket that opens out into three panels, providing a massive "canvas" for artwork and credits.

Triple Album (3LP)
A release consisting of three 12-inch records. To maintain the highest audio fidelity, longer albums are spread across six sides of vinyl to avoid "compressing" the grooves.

Turntable
The high-fidelity component used to rotate the record at a precise, consistent speed while the cartridge translates the physical grooves into electrical signals.

Uncut Picture Disc
A shaped picture disc that has not been trimmed to its final silhouette. These usually appear as a standard 12-inch circular or square disc, with the specific shaped artwork and playing surface visible in the middle.

Unissued / Unreleased
A record that was fully prepared for release—including mastering and sometimes pressing—but was never officially distributed to the public. These are often discovered as Test Pressings.

UPC (Universal Product Code)
The barcode found on the back of modern record jackets. While not present on vintage originals, it is a primary tool for identifying and cataloguing modern Reissues.

Upmixing
The process of digitally or analogically converting an original mono or stereo recording into a multi-channel format, such as surround sound.

Variant
A specific version of a release that differs from the standard black vinyl issue. Common variants include coloured, marbled, splatter, or translucent vinyl, as well as store exclusives. Collectors hunt for these "pieces of art" for their visual appeal and limited production numbers.

Very Good (VG)
A grade denoting a record with noticeable wear. It will have prominent surface noise in soft passages and visible light scratches, though these should not overpower the music.

Very Good Plus (VG+)
The "gold standard" grade for used records. It shows slight signs of wear, such as light paper scuffs or very faint marks, but these do not affect the listening experience.

Vibrations / Rumble
External interference or mechanical noise that can affect audio quality. High-quality Plinths and Belt Drive systems are designed to dampen these vibrations for a cleaner sound.

Vinyl / Vinyl Record
The physical, analogue storage medium for music. Sound waves are physically etched into a PVC (polyvinyl chloride) disc as a continuous spiral groove. Most records contain "carbon black," which reduces static and prevents dust from adhering to the surface.

Vinylhead / Vinyl Junkie
Slang terms for an obsessive collector who takes immense pride in the hunt for rare records and the superior sound of the analogue format.

Vinyls
A controversial term. Technically, "vinyl" is an uncountable noun. Seasoned collectors generally avoid the term "vinyls," preferring to say "records" or simply "vinyl."

Vintage
Generally applied to records over 20 years old. Once a record reaches 100 years, it is technically classed as an "antique" rather than just vintage.

Virgin Vinyl
Records pressed from 100% pure, un-recycled plastic. Because it has fewer impurities than "reground" vinyl, it results in much lower surface noise and higher audio fidelity.

VPI / Vacuum Cleaning
A professional wet-cleaning process (often using a VPI machine) that uses a vacuum to pull deep-seated dirt and oils out of the grooves. This is the most effective way to restore the sound of a vintage record.

VTA (Vertical Tracking Angle)
The angle at which the tonearm sits in relation to the record surface. Correct VTA is essential for ensuring the stylus sits perfectly in the groove for optimal high-frequency response.

W/ (With)
A common listing abbreviation used to indicate included extras, such as w/ OBI, w/ Poster, or w/ Insert.

Warmth
A common term used to describe the rich, organic, and "human" sound characteristic of analogue vinyl playback, often contrasted with the "cold" or clinical sound of digital files.

Warp / Warped
A physical distortion in a record's shape caused by heat, pressure, or improper storage.

• Edge Warp: A visible "dip" or "wave" at the outer rim.
• Dish Warp: Where the whole record is curved like a bowl.

Wax
The most popular slang term for vinyl records. It originates from the early 20th century when master recordings were cut into wax discs.

• Fresh Wax: A brand-new or newly unsealed release.
• Spinning Wax: The act of DJing with physical records.
• Waxy: Slang for a particularly rich, analogue sound.

WD (Water Damage)
A professional listing abbreviation used to describe sleeves with stains, warping, or "tide marks" caused by exposure to moisture.

White Label / WLP
A record with a plain white label, usually signifying a Test Pressing or a White Label Promo sent to DJs and radio stations before the official artwork is printed.

White Whale / Holy Grail
The "ultimate" rare record that a collector has spent years, or even a lifetime, trying to track down.

Withdrawn
A record that was briefly available but was recalled or removed from sale by the manufacturer, often due to legal disputes, sample clearance issues, or artwork errors.

WOL / WOC
Common abbreviations for Writing On Label or Writing On Cover. This usually refers to a previous owner’s name or a radio station's filing notes.

Zoetrope Vinyl
A specialised form of picture disc featuring sequential illustrations. When the record spins under a strobe light or is viewed through a camera lens, the images appear to animate, creating a moving "movie" on the surface of the vinyl.