By experimenting and reading up I found out how to retag my MP3s using Linux (and probably also Windows using Cygwin) so that they all will be fully recognized. I also found a procedure to nicely resize cover scans which can be displayed when playing a co
eyeD3 is a Python module and program for processing ID3 tags. Information about mp3 files (i.e bit rate, sample frequency, play time, etc.) is also provided. The formats supported are ID3 v1.0/v1.1 and v2.3/v2.4.