Hi-
There was a pcmcia cd/rom gizmo made by Archos (I think). Also an Amiga branded version of the same (I still have the box it came in) which never seems to show up in the big book of hardware. Works OK (only 2X read speed, but maybe faster with a newer cd player). If you have access to used stuff, it might be just what you want.
Yours-
CRL