My problem is that whenever I insert a homemade cd, it comes up on the desktop, but when I click on it, it's empty (reads: 0 items, 1.3 MB of 702.8 MB. used on disc). I can put the cds in either of my other macs (ibook & powerbook) and they show all the contents, but not on my iMac. This is not a problem with premade cds or any kind of dvd. This is only a problem with burnt cds, from either mac or pc, with various types of contents, and with various brands of cds - verbatim, maxell, memorex, imation and hp. It doesn't matter if the discs were burnt with the finder, itunes, disk utility, or Toast. I'm using an IMAC 1.8Ghz G5, OS 10.4.11, with the apple installed Matshita dvd-r uj-825. I have run Disk Utility. All permissions are fine. And I've used a lens cleaner cd. Up until a few weeks ago there was no problem at all. Any suggestions? Thanks!!