Re: Otter or ID3 Limit
Just to offer another alternative...
Of late I've been using Otter for file renaming then Media Monkey for
a) MP3 auto-tagging from file name (obviously requires standardizing
your file names first), b) doing blanket changes like adding genre or
image tags from the Properties menu, and c) auto-numbering tracks from
the Scripts menu. It's been working well for me. You can find the
free version of Media Monkey at: