In my mp3 collection there are a lot of songs that do not have a duration after beeing scanned by MP. Easiest way to find those is to go to MyMusic (songs view) and sort by time. I have about 9 (out of 91) pages of songs without a time.

It seems that the MP3 tagreader can not read the time for some songs. I used the Multitagreader instead of the MP3tagreader and that one reads the the time correctly from the files that are causing problems with the normal MP3 tagreader.

A file where the time can not be read can be found here: http://home.ict.nl/~mweterin/mp/ff/Mano%20Negra%20-%20King%20Kong%20Five.rar