This sounds confusing, it results in credits like:
````composer:    Christofer Johnsson (tracks 1.1, 8, 2.1–2.2, 2.7) ````

Where track 8 is the only one without a disc prefix just because the second disc doesn't have a track 8.  It seems easier to understand this list if the disc prefix is just always there if there are multiple discs.