3 ms·The early Apple CDROM drives also took a caddy that you put your disk into.by timthorn 7y agoThe early Apple CDROM drives also took a caddy that you put your disk into.mattl 7y agoThe proposed Nintendo/Sony CD-ROM was also caddy based.gambiting 7y agoI just remembered that UMD discs for the PSP came in a plastic case(which stupidly didn't include a sliding window, leading to the discs getting scratched even though they were in the case).