Version: 1.4.3 (using KDE 3.5.4, Kubuntu Package 4:3.5.4-0ubuntu2~dapper1 ) Compiler: Target: i486-linux-gnu OS: Linux (i686) release 2.6.15-26-k7 I listen music compressed in .mp4 (mpeg layer 4) file format. So when I had edit tags of .mp4 audio files amarok crashes saying me "Cannot write tags on <filename>.mp4", perhaps i already've all rights on that audio files. That's all, Thaks.
The mp4 tag reader which is bundled with Amarok does not let the user write to mp4 files. You must be using the external mp4 writing libraries, which are explicitly warned against, since they can corrupt files when writing to them.