Multi Volume

Multi Volume sets can be combined in one set by giving them the same album title.
Often this results in the famous 11.., 22.. problem.

Players like JRMC support the Disc Number tag.
Assign a disc number to each volume first then give them the same album title.

Some media players don’t support the Disc Number, you might hit problems the moment you e.g. synchronize to a portable.
JRMC has a library option to number the tracks consecutively as displayed but then you lose the original track numbers.

I prefer to keep the original track number.
If a track goes missing, knowing the original numbering makes it easier to retrieve it from the CD.

Prefixing the track number with the disc number keeps them in the right sequence and preserves the original number.

A simple trick is to us an expression like:
Math([Disc #]*1000+ [Track #])

Paste this expression in the Track #

Now they sort consecutively while preserving the original track number.

You can roll back using

Math([Track #]-[Disc #]*1000)