Is there a way to give AAC files ID3 tags? I've read that they can use them, it's just not regularly done. Any help would be nice; I need the ID3 tags for my ZEN to read .m4a files without installing the Creative software, and the software is the primary suspect for my most recent computer crash so I'd rather not.

[ETA: after way too many attempted search strings, I found this:
http://www.hydrogenaudio.org/forums/lofive...php/t55996.html
which is sort of helpful - if that's what I should try, then does it mean just changing the extension manually? What type of tagging program? I do all of my tagging in f2k.]