Established as “Gramofonové Závody a.s.” (“Gramophone Record Factory”) in 1951, GZ is a leading manufacturer of records, cassettes and optical discs. This Czech based company is probably the largest record manufacturer in the world today and has expanded its record manufacturing activities to include investments in Canada and the USA. Operated under this name between 17 January 2000 and 31 December 2013.
Vinyl matrix schemes ca. 1999–2004: AX #####/Z “A” = verbatim, no particular meaning
“X” = format
“Z” = galvanoplasty
Vinyl matrix schemes ca. 2004–2013: #####X~/Z or #####X~~/Z “X” = format
“~” = side number
“Z” = galvanoplasty
Main vinyl formats: E = stereo, 12", 33⅓ RPM
F = stereo, 10", 33⅓ RPM
G = stereo, 7" EP, 45 RPM
H = stereo, 7", 45 RPM
M = stereo, 12", 45 RPM
N = stereo, 10", 45 RPM
O = stereo, 7", 33⅓ RPM
CD matrix scheme: GZ X##### (GZ prefix is sometimes omitted)
“X” = year of matrix manufacturing
K=1999, L=2000, M=2001, N=2002, O=2003, P=2004, R=2005, S=2006, T=2007, U=2008, V=2009, W=2010, X=2011, Y=2012, Z=2013
“Q” was never used in the matrix schemes.
CD matrix will be stored for 2 years, i.e. any represses in that time window will bear the same number.
If the original CD matrix was damaged, a new one will be created with a new number.
How to • When another company is etched into the runouts alongside the GZ Digital Media matrix number, please add a Manufactured By credit for that company in addition to the Pressed By credit for GZ Digital Media.
• For these releases with “www.gzvinyl.com” in runout area the “www.gzvinyl.com” entity can be used.
• All releases manufactured (and released) before 1999 (CD: year code “A” to “J”) should be listed under Gramofonové Závody.
• All releases manufactured in 2014 or later (CD: year code “A” etc. again) should be listed under GZ Media; do not confuse the actual release date with the year of manufacture though.
Vinyl: Enter the numbers up to and including the first letter. For example: 130500E, with Pressed By role. If at the same time “www.gzvinyl.com” string is found on run-out grooves use the role Manufactured By for it.
CD: only the “X#####” string should be entered, without the “GZ” prefix.