This is what I had when using a custom tag and Mp3tag to write the value.
Since MB is automatically populating the field on file import, maybe the best outcome would be;
1/: "Unknown" for any older unscanned files
2/: Bit Depth for lossless formats
3/: Leave it blank for lossy formats with the tooltip; "Only lossless formats have fixed bit depth"
Because of the last change i made, i wont be able to do 1
I agree 3 is a good idea, so i will add a tooltip in the main bit-depth column where applicable
- not implemented as i am not sure users would think to hover the mouse over the field
Also when <bit depth> is used in virtual tags, rather than saying "Unknown Bit Depth", i will change it to stay blank