Serial Guide - PlayStation 1
Below you can find the general overview of a standard PS1 serial-type.
Standard PlayStation 1 Discs
|1st letter||2nd letter||3rd letter||4th letter|
|System||1st/3rd party||Region||Release category|
|S||PS1 (& PS2)||C||First party||E||Europe||D||Demo|
The serial numbers represent a lot less information than the serial type and without the serial type they are pretty meaningless. There is also way less standardization of the numbers and it looks like every region was allowed to come up with their own way of numbering the games. Nevertheless, for sake of completeness I will show the serial number regions below and I'll try to make as much sense of it as possible.
Serial numbers in Europe are pretty straightforward. They start at 00001 and count up from there. All different serial types (SCES, SCED, SLES etc.) are in the same range. There's also a nifty system for multi-disc games. Take a look at the serials for Final Fantasy VII:
DISC 1: SCES-00867 DISC 2: SCES-10867 DISC 3: SCES-20867
For every disc the first digit has gone up. Pretty simple and straighforward!
The USA has a little more serial regions than Europe
|SLUS games||Starting at 00001 and counting up|
|SCUS games & demos||Numbers in the 94xxx range|
|SLUS demos||Numbers in the 90xxx range|
|SLUS trade demos||Numbers in the 8xxxx range|
And what about multi-disc games? Well, there is absolutely no system like in Europe: multiple discs just get another serial like they are a totally different game.