The goal of this website is to explain the complete manufacturing process of records and CDs, especially how matrix codes are inscribed and what they mean, and apply the information to explain official Nirvana releases, such as deciding the time and place of manufacture, verifying authenticity, and even understanding why certain items were made. The site covers test pressings and Pennyroyal Tea items. (More.)
For a complete discography, please visit nirvana-discography.com.
Do you have a Nirvana test pressing for sale? Please get in touch!
A fifth copy of the Sub Pop Sliver 7" test pressing has been found in Seattle, 27 years after the release.
A Canadian sample CD of The Beavis And Butt-Head Experience has been found.
A new copy of the French 7" test pressing of Sliver has been shown on Discogs.com. This is the sixth confirmed copy to surface.
The first RTI test pressing of the ORG reissue of Nevermind was pressed before the previously known first test pressing, as a copy has appeared dated three weeks earlier.
A copy of the test pressing for the first Original Recordings Group reissue of Nevermind, manufactured by RTI, has surfaced on eBay.
Another copy of the Sliver 7" on Tupelo has surfaced, together with one previously not added to this website there are now four surfaced copies. The new copies have been added as copies 3 and 4.
A new copy (3) of the rejected cut of Lanegan's first solo album was recently sold on eBay by Dan Peters. A never before documented German test pressing of Hole's Live Through This has also surfaced, barely containing Cobain's vocals buried in the mix. Tupelo test pressings of Bleach (copy 3) and Blew (copy 3) owned by a friend for a decade are finally shown on the site, and the image of the first copy of the British Unplugged In New York test pressing has been upgraded in all its blank beauty.
A second copy of the American pressing of Heaven & Hell has surfaced, with a sheet from the distributor.
A second test pressing of the cancelled British pressing of Unplugged In New York has surfaced on eBay.
The British Geffen vinyl releases were not cut by Abbey Road, but by Copymasters. The matrix codes were stamped or written by the pressing plants, which for the purpose of this website were EMI and Orlake. The same applies to Utopia cuts, in this case MPO wrote the matrix codes.