Thanks for the suggestion.

Actually I started something like this some time ago. But I had only additional tic boxes for FLAC and AAC. I still used the 'Format' field for the main format (CD, CD-R, LP, SACD, 3"CD, CC, ...). There I had only sometimes double entries for CD+LP which is not so nice.

I wonder if anybody else had thought about it. It should be a 'problem' for a lot of people, isn't it?

Regards,
Mathias