IIRC when the BIOS contains the activation data blob the discs are not manufacturer specific. There also used to be discs (at least in the windows 2000 times) t

IIRC when the BIOS contains the activation data blob the discs are not manufacturer specific. There also used to be discs (at least in the windows 2000 times) that only checked for correct manufacturer name in DMI (or something similar), which obviously were manufacturer specific (AFAIK for a long time this is not possible).