Hi,
I had a problem with the scanner crashing the squeezeboxserver daemon when it came across a file with 0000 set for the year in the ID3v2 tag.
Simple resolution is to set year to something appropriate and scanner completes as normal and the daemon stays active.

System (if required):
Logitech Media Server Status
Logitech Media Server Version: 7.7.0 - r33614 @ Tue Oct 18 12:09:21 MDT 2011
Hostname: mediaserver
Server IP Address: 192.168.0.108
Server HTTP Port Number: 9002
Operating system: Red Hat - EN - utf8
Platform Architecture: i686-linux
Perl Version: 5.8.8 - i386-linux-thread-multi
Database Version: DBD::SQLite 1.34_01 (sqlite 3.7.7.1)
Total Players Recognized: 2

If you need anymore details please let me know. FYI, logs were not verbose enough to determine problem:

[root@mediaserver ~]# tail -f /var/log/squeezeboxserver/scanner.log
[11-11-02 17:17:09.5274] main::main (200) Starting Logitech Media Server scanner (v7.7.0, r33614, Tue Oct 18 12:09:21 MDT 2011) perl 5.008008
[11-11-02 17:17:10.7007] Slim::Music::Import::runImporter (478) Starting Slim::Media::MediaFolderScan scan
[11-11-02 17:17:10.7014] Slim::Utils::Scanner::Local::rescan (171) Discovering audio files in /media/Music
[11-11-02 17:17:16.6869] Slim::Utils::Scanner::Local::__ANON__ (254) Removing deleted audio files (0)
[11-11-02 17:17:16.6874] Slim::Utils::Scanner::Local::__ANON__ (332) Scanning new audio files (12272)

The last entry in server.log (it was rotated on restart):
[11-11-03 10:52:20.8126] Slim::Utils::Scanner::Local::rescan (171) Discovering audio files in /media/Music
[11-11-03 10:52:32.0675] Slim::Utils::Scanner::Local::__ANON__ (254) Removing deleted audio files (0)
[11-11-03 10:52:32.0679] Slim::Utils::Scanner::Local::__ANON__ (332) Scanning new audio files (11270)
[11-11-03 10:52:32.0691] Slim::Utils::Scanner::Local::__ANON__ (410) Rescanning changed audio files (0)

File where the scanner stopped and crashed:

[11-11-03 12:39:13.2157] Slim::Utils::Scanner::Local::new (773) Handling new audio track file:///media/Music/Bob%20Dylan/Desire/01%20-%20Hurricane.mp3

Thanks