CD (Compact Disc)
CD-Audio
CD-Video
XA, Mode 2/Form 1, Mode 2/Form 2
CD-ROM 650/700 (data CD)
CD-R (write once)
CD-RW (rewritable)
Copy Generation Management System (CGMS)
BURN-Proof (Sanyo, BufferUnderRuN-Proof, www.burn-proof.com)

CD-I
CD interactive

Others
MMCD / HighDensity-CD 3.7GB (Sony, Philips)
SuperDensity Disc - SD 5GB (Toshiba, TimeWarner)

The following CD-ROMs are officially supported by OS/2 2.11
Hitachi: CDR-1650S, 1750S, 3650, 3750
IBM: CD-ROM I, CD-ROM II
Chinon: 431, 435, 535
Mitsumi: CRMC-Lu005, FX001, FX001D
NEC: CDR-25, 36, 37, 38, 72, 73, 74, 82, 83, 84, 3Xe, 3Xi, 3xp
Panasonic: CR-501, LK-MC501S, 501B, 521, 522, 523, 562, 563
Pioneer: DRM-600, 604X
Sony: CDU-541, 561, 6111, 6211, 7211, 31A, 7305
Texel: DM-3021, 3024, 5021, 5024, 3028, 5028
Toshiba: XM-3201, 3301, 3401