Alternatively, if there must be a new disc category, I'd choose a more generic name, based on the info I provided above (maybe "PlayStation Enhancement CD (Audio)" (as some of these discs contained not only upgrades but more cheat codes and maybe some other goodie).
I agree with this.
Differently as in not with DIC? I have that Karat disc so let me know. khn will be dumping a dozen or so soon so now is a good time to fill in any missing details.
As far as I understand, all our 'PSX-CDDA' dumps belong to the same family and the first track should start with "G.THORNTON". So far:
GameShark - The BigWave Enhancement CD (USA) +629
GameShark - The BigWave 2 Enhancement CD (USA) +41
GameShark - The BigWave 3 Enhancement CD (USA) +677
GameShark - The BigWave 4 Enhancement CD (USA) +658
GameShark Enhancement CD Version 2.2 (USA) (Unl) +629
Karat PS-you Action Replay Higi Code CD Vol. 4 (Japan) +1034