In my converter output, I've got filenames set to append the disc number and a dash if part of a set:
the [IFMULTI][disc]-[] part seems to usually get skipped. Even with the disc number definitely in the tags, it outputs tracks without the disc number and hyphen.
Code:
[TRIMFIRSTFOLDER][TRIMFIRSTFOLDER][origpath][][] - [extension]\[MAXLENGTH]100,[IFMULTI][disc]-[][track] [title] - [artist][]
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