Non-numerical labels for discs

Actually, looking at the ID3 specification, there is a frame intended for a subtitle for a disc within a set. The tag is ‘Set Subtitle’ (TSST).

So your set might look like this:

album (TALB) = A Song of Ice and Fire
discnumber (TPOS) = 1
SetSubtitle (TSST) = Book 1: A Game of Thrones
discnumber (TPOS) = 2
SetSubtitle (TSST) = Book 2: A Clash of Kings

Plex would have to implement support for TSST, so there is still a feature request here. Or maybe I should add it to the request for better ID3 support.

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