Incomplete id3v2 TRCK support
kid3 does not seem to support the "total number of tracks" part of the TRCK field of id3v2.
If the field contains the extended form like "4/9", kid3 seems to treat it as 0. 4 would be slightly better, and full support for the extended form even better than that :)
Imported from SourceForge, author: scop