I don't have an Lyric3 tags or any ID3v1. Planning for a bunch of .lrc swapping, I've been pondering the batch aspect of running lrc2sylt. I'm thinking I'll modify some perl progs I already have. I have code that builds a hash of all the mp3s indexed by filename with the path(s) to that file as an array. The idea being to run through a directory of a bunch of .lrc files, the a .mp3 by the same name and run your lrc2sylt on each file pair.

Dunno how much time I'm going to have, but if anyone else wants to start, I can send them the code I've got to use as a starter. I use it for fixing playlists, building a folder of links based on a playlist (for burning a CD that matches a playlist) and a few other things like that.