I am presently cataloguing my music collection and writing some scripts to allow me to extract metadata from the music tracks.
One of the tags of interest is the disc number of tracks ripped from boxed sets of CDs.
I use the formula 1/1 or 2/3 to indicate the CD I am dealing with and where it sits in terms of the boxed sets.
It works very well so long as I do not try to extend beyond single numbers. I have a few extremely large boxed sets that have in excess of 10 CDs.
However if I tag my Mp3 files with disk info of say 12/14, Opus does not seem to accept double figures. I am not sure whether this is just an Opus problem or it is actually a restriction of the mp3 tagging system.
What I do know is the tag utility I use allows me to enter double digits, and Opus seems to ignore the second digit so that 12/14 becomes 1/1