Just yesterday I switched to the Mac (24" iMac - very nice). It was surprisingly crashy on the first day, but now evertything is great - except my iPod. Every time I try to sync it, I get the error: "The iPod cannot be updated. An unknown error occured (-48)". What's weird is that everything was fine on my Windows PC, so it's surprising that this it would be as sucky as it is on Mac OS. Things I tried: Restoring iPod Rebuilding library Formatting iPod drive in Disk Utility I did notice that "Veryify Disk" picked up errors as follows: ====================================== Verifying volume “David’s iPod” Checking HFS Plus volume. Checking Extents Overflow file. Checking Catalog file. Checking Catalog hierarchy. Checking volume bitmap. Checking volume information. Invalid volume file count (It should be 4258 instead of 40) Invalid volume directory count (It should be 65 instead of 61) Invalid volume free block count (It should be 534633 instead of 7270144) Volume Header needs minor repair The volume David’s iPod needs to be repaired. Error: The underlying task reported failure on exit 1 HFS volume checked Volume needs repair ====================================== Repairing the iPod's disk doesn't fix the problem at all. Anyone else solve this?