So basically I have a library with FLAC, MP3, MP4. I want to be consistent in the way I tag my metadata. The ID3 standard says to use DISCNUMBER as "disc#/totaldiscs" and TRACK as "track#/totaltracks"
I noticed for MP4 doing it this way will automatically remap to TOTALDISCS and TOTALTRACKS. So aside from MP4 which does its own thing, do you guys use TOTALDISCS and TOTALTRACKS for all kinds or only DISCNUMBER and TRACK per the standard?