Czech company, vinyl, tape, CD and DVD manufacturer, operating under this name since 1 January 2014.
Successor to Gramofonové Závody (Gramophone Record Factory) and GZ Digital Media Vinyl manufacture in Loděnice has taken place continuously since 1951. GZ temporarily used the internal trademark “GZ V!nyl”, also known as “GZ Vinyl”. Sometimes credited with a “www.gzvinyl.com” stamp in the vinyl runout area.
Vinyl matrix schemes ######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 X##### “X” = year of matrix manufacturing
A=2014, B=2015, C=2016, D=2017, E=2018 etc.
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.
Note that the CD matrix year codes “A”, “B”, “C“, etc. were already in use since 1989 by Gramofonové Závody and continued up to “Z” in 2013 by GZ Digital Media.
How to • Use this entity to list releases manufactured in 2014 or later only. All releases manufactured (and released) in 2013 or earlier should be listed under GZ Digital Media or Gramofonové Závody respectively. 115067E matrix number is known to had been made still in 2013: for this reason, 2014 releases that carry a matrix number lower than 115067E should be listed under GZ Digital Media because they were still made in 2013.
• When another company (such as Pirates Press and www.gzvinyl.com) is etched into the runouts alongside the GZ Media matrix number, a Manufactured By credit for that company should be added in addition to the Pressed By credit for GZ Media.
• Please refer to Precision Record Pressing when an additional etched number starting with 10- (example 10-83451) appears in the runouts alongside the GZ Media matrix number.
LCCN how-to Vinyl: Enter numbers and the letter only. For example: 130500E, with role: Pressed By
CD: only the “X#####” string should be entered, without any “GZ” prefix or any optional suffix.
Note about the vinyl matrix numbering(Source) "The so called matrix (stamper) numbers are not exactly matrix (stamper) numbers, but metal parts numbers - either for metal mothers or DMM copper plates. Therefore /A or /B indexes. Every copper plate cut (or a mother plate produced from a lacquer) receives an unique number consisting of a "premaster" number (e.g. 97460E1) and an index of cutting (mother producing), e.g. /B means a second DMM cut and /C means a third DMM cut. Or a lacquer cut. For lacquer technology or for externally supplied copper plates (e.g. from Abbey Road studios) where the 3-step technology has to be used it is more complicated as there may be additional indexes - /B would still be the first mother produced from a second lacquer (father/master). /B1 would be a second mother produced from the second lacquer/father, /C3 would be a fourth mother produced from a third lacquer/father etc."