Can you give me an example of the issue? As I'm not sure how adding ATF support would help since that in itself would be relying on title, artist & optionally track, album & albumartist metadata being right to start with unless it's about splitting multi-part values (on artist & albumartist I assume) & if so it might be simpler to have a mode that just tries to get the first value up to a comma or a slash vs ATF overhead.