Huh?  I took the question to mean that the original poster has
a CD-ROM drive, they want to insert an audio CD, and they want to
gather information about the audio tracks on the CD.  This is a
pretty low-level function.  It has to depend on the device driver
for the CD-ROM drive, and it may have to have some very specific
knowledge about the CD audio format (which is different than the
CD-ROM format; only the latter has a filesystem, for one thing).

Think of a TOC as sort of like a partition table, except that it
divides up a continuous series of audio frames into conceptual
tracks, and I think it uses seconds (rather than frames or
blocks or bytes) as its unit.

As I understand it, the usual way to do all this on a PC is to
speak ATAPI to the hardware.  I don't know of a way to do this
directly from Java, although it could be possible.

Also, it sounds to me like this would all be done on the client
side, not the server side.  The client needs to look at the low-level
info on the physical disc, then it needs to contact some service
on the network to gather more information about that disc, then
store that into a database somewhere.  Java sounds great for the
second two of those, but the first one is another question.

  - Logan