You have inserted a disc containing volumes that mac os x cannot understand. options are to eject or ignore and don't mount! please help!

Is that a DVD? If you insert a DVD from a different region, it'll be automatically ejected.

this is more than one CD? One time i put in a crappy CD which was non writable and then every disc after wouldn't work... I restarted and it fixed it! <-- Sounds like Windows!

I'm guessing these CD's will open fine on other PCs/ Macs ? Maybe the CD-ROM drive on your Mac is going ?

tried like 3 or 4, then went to windows with same discs, and gave me errors, kept trying some then one worked, heh weird. thanks anyways guys!