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OldAlias
Nov 2, 2013

Silver Alicorn posted:

you might be thinking of the low capacity discs for PS2.

yeah this. the blue backed ps2 games were just CDs I’m pretty sure. the ‘slide card’ swap disks for ps2 came with two disks, one a DVD driver and the other a CD driver, and you had to use the CD driver disk for the blue backed ones

ps1 disks mostly had black dye with a few exceptions. if you were to buy FF origins today off squeenixes site it might intsead have a clear backing

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OldAlias
Nov 2, 2013

echinopsis posted:

bullshit

I saw it and it was black :foldarmsemoji:



was the blackness part of the drm

not quite drm. the dye was partly a branding thing and partly to differentiate between legit copies and repros

OldAlias
Nov 2, 2013

Silver Alicorn posted:

PS1 discs have a particular track that “wobbles” in a few spots. the laser can detect and report that is is compensating for wobble. the wobble has to be part of the mastering process and writable cds don’t have it so they can’t run.

yeah the wobble groove is within the first few sectors of the disc so commodity burners can’t replicate it. if my memory serves the wobble groove contains whatever region code and mod chips just injects the expected signal at the right time

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