After reinstalling the slimserver and doing a full rescan, I noticed that some tracks and albums had disappeared from the list.

After turning scanner log to debug, I see the following in the scanner log:

[10-03-12 21:58:37.7880] Slim::Utils::Scanner::scanDirectory (333) Scanning: Y:\ITunes\iTunes Music\Nat King Cole\Unforgettable\You're The Top.mp3
[10-03-12 21:58:37.9218] Slim::Utils::Scanner::scanDirectory (333) Scanning: Y:\ITunes\iTunes Music\Nick Cave and the Bad Seeds\The Best Of (Disc 1)\Tupelo.mp3
[10-03-12 21:58:38.0808] Slim::Utils::Scanner::scanDirectory (333) Scanning: Y:\ITunes\iTunes Music\Nidarosdomens Guttekor\I Wish\01 Stille natt.mp3

There are 5 subdirectories under "Nick Cave and the Bad Seeds", and the "The Best Of (Disc 1)" directory contains 16 tracks, but the scanner only found one track.

No error or warning messages, here or in server.log

All tracks can be played by winamp, and the one track found by the scanner plays on the squeezebox.

I have tried several times, and this happens every time.