Don't run the set_empeg_max_fid thing unless you're sure it's an issue with the number of tracks. You'd need over 13,000 unique tracks before it was an issue. Is that the case?

Please give us more detail, if you can, about the exact error you get. If you get a "<songname> could not be synchronized" error, does it successfully synchronize the rest of the songs? Perhaps there is something wrong with that specific file on your PC's hard disk.