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Promo, Test Pressing, or Bootleg: A Physical Tells Guide

The fastest way to tell a promo from a test pressing from a bootleg is to look at three things: what the label says, what the sleeve looks like, and what the matrix string in the deadwax says. A promo is an official record stamped for promotional use. A test pressing is a factory quality-control pull with plain labels and no artwork. A bootleg is unofficial: vague or missing label info, matrix strings that don't match any real label, and audio sourced from other releases. The sections below break down the tells for each.

Why the Category Matters

These categories aren't trivia. They change what a record is worth and where you can sell it.

  • A promo of a known release is usually worth less than the stock copy, sometimes more if the promo mix is exclusive.
  • A genuine test pressing of a sought-after title can be the most valuable version that exists, because only a handful were made.
  • A bootleg sits outside the official market entirely. In 2017 Discogs purged roughly 400,000 unofficial listings and blocked their sale, deleting the sold-price history with them. If your record is unofficial, that platform is closed to you, which is why why Discogs won't list your record matters before you research a price that no longer exists anywhere.

Mislabeling cuts both ways. Sellers call bootlegs "test pressings" because it sounds rare and clean. Buyers pass on real test pressings because they assume any blank-labelled record is a boot. Learn the tells and you stop losing money in both directions.

Promo: Marked on Purpose

A promo is an official pressing the label gave away to DJs, radio, journalists, or shops. It wants to be identified as a promo; that was the point: controlled distribution.

Physical tells:

  • Marked label. Look for text like "Promotional use only", "Not for sale", "DJ copy", or the equivalent in the record's country of origin. Sometimes printed, sometimes a gold or white stamp over the stock label.
  • Marked sleeve. A stamp, sticker, or a cut corner / drill hole / saw mark on the sleeve. US promos especially get the cut-out treatment.
  • Timing strip. Radio promos sometimes carry a strip on the sleeve or label listing track times, so a presenter could cue without listening first.
  • Stock matrix. The runout usually matches the commercial release, sometimes with a "PROMO" etching added. See how to read matrix and runout codes.

A promo is fully official. It can be sold anywhere normal records are sold.

Test Pressing: Factory Plain

A test pressing exists to check the lacquer and the stampers before a production run. The plant presses a tiny number, often single digits to a few dozen, sent to the label, engineer, and artist for approval. Nothing about it is dressed up.

Physical tells:

  • Plain white or factory label. No logo, no catalogue number, or the pressing plant's own generic label, sometimes pre-printed with fields for client and catalogue number, filled in by hand or typewriter.
  • Hand-written matrix info. The catalogue number or matrix written on the label in pen or pencil, often in different handwriting per copy. It should match what's etched in the runout.
  • Matching deadwax. The runout should carry the real matrix for the release, plus stamper letters and sometimes a lacquer number. A claimed test pressing whose runout doesn't match any known matrix for that title is a red flag.
  • No artwork. Plain white or generic company sleeve. A "test pressing" in a full printed sleeve is usually just an early stock copy.

Scarcity is the whole story here. If someone is selling one of five test pressings, ask how they know, and expect the answer to involve who they got it from, not a feeling.

White Label: Its Own Category

A white label is not automatically a promo or a test pressing. Plenty of records were commercially released with blank or stamped white labels, especially in dance music, where pressing a few hundred and selling them straight to specialist shops was the whole release strategy. No artwork, no marketing, just the matrix string and the music.

The full breakdown of white label versus promo versus test pressing versus acetate versus bootleg is in what is a white label record. The relevant point here: a white label can be official, unofficial, or never clarified, and the label face alone won't tell you which. The deadwax and the audio will.

Bootleg / Unofficial: Vague on Purpose

A bootleg reproduces or repackages music without the rights. The people pressing it know that, so the tells are mostly evasion: the record gives you less information than an official pressing would, or information that doesn't hold together.

Physical tells:

  • No label info, or deliberately vague info. A made-up label name that exists nowhere else, "Recorded live in Europe", no date, no rights society, no copyright line. Official pressings are usually proud of this data. Boots strip it.
  • Matrix strings that don't match the label name. The deadwax says "STEAM-001-A1" but the label claims to be something else entirely, or the catalogue number follows no real series. If you're not sure how to parse what you're seeing, start with how to read matrix and runout codes.
  • Audio sourced from other releases. Bootlegs are frequently mastered from CD, from another vinyl rip, or from a broadcast. Listen for generation loss, EQ that fights the format, or a CD's track gaps pressed into a continuous side. You can't always catch this on a quick listen, which is why hearing the actual copy matters, more on that below.
  • Sleeve print quality. Scanned and reprinted covers lose sharpness: soft text, colour shift, dot patterns in photos, paper stock that feels wrong for the era. Compare against a known official copy if you can find one.
  • Compilation logic. A record collecting tracks that were never officially compiled together, especially "live" or "unreleased" material from a big artist, is unofficial until proven otherwise.

If you've run through these tells and still can't place the record, the step-by-step process in how to identify an unknown white label record is the next move.

When the Paperwork Tells You Nothing

Here's the honest dead-end: some records carry no readable information at all. Blank labels, a cryptic etching, no sleeve. The standard advice is to run it through Shazam or a similar app, and that usually fails on unreleased and unofficial material, because the audio isn't in their databases. Asking r/vinyl can work, but you're waiting on a stranger who owns the same anonymous record.

This is the gap Unlabeled was built for: a marketplace for the unlabeled, white-label, promo-only, and unofficial pressings Discogs can't identify and won't sell. Two things cut through the ambiguity:

  • Audio previews. Every seller uploads audio of the actual record. If you're buying a bootleg of a live show, you can hear whether it's the soundboard or a hallway cassette before you pay. If you're selling, the audio is your proof of what's in the groove when the label tells the buyer nothing.
  • Matrix-first cataloguing. Records are catalogued by matrix and runout etching rather than artist and title, because many have neither. A record with nothing but "STEAM-001-A1" in the deadwax can still be listed, found, and compared.

There's also a public Archive of unidentified records where the community helps pin IDs on the stubborn ones. To be clear about what this isn't: nothing automatically identifies any record. What you get is the audio and the matrix data in front of humans who handle these records daily, which is how these IDs actually happen.

If you're holding one of these and you know what it is, you can browse listings to see how similar records move, or sell it on Unlabeled with 0% seller fees and direct PayPal payment from the buyer. And once you know what the record is, grading unidentified and unofficial pressings covers how to grade it honestly when there's no reference copy.

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