I recently converted all my wma files to mp3 only to realize that all the tags were lost. My music is in the form:
...\artist\album\track title.mp3
MP3TAG came to my rescue! Not sure whether there was an easier way to do this, but I got started by reading this. Sorry if these are lame ways of doing it, but it's my 1st experience with regexp.
format artist:
$regexp(%_folderpath%,.+\\(.+)\\(.+)\\,$1)
format album:
$regexp(%_folderpath%,.+\\(.+)\\(.+)\\,$2)
Next 2 I got from ThurstonX in this post.
format track:
$regexp(%_filename%,(\d*)\s?(.+),$1)
format title:
$regexp(%_filename%,(\d*)\s?(.+),$2)
This program saved me TONS of time...