corrupt moodlogic database after using mp3tag

I have just downloaded mp3tag and started to use it to edit the tags on my iriver
h140 mp3 player.
Everything seemed to be o.k. and moodlogic updated the database after the tag changes.
However when I switch the mp3 player on instead of artist,album genre etc entries I now have a series of ???????.
I must have done something wrong with the update but can anyone help me ?


Thanks Sebastian - your url solved my problem