When you try the rename script are there any error messages shown in the Output Window, Script tab?
If the MP3 files have tags then you could use/adapt the Sort Music by Tags preset from this post to put the titles into the filenames.
When you try the rename script are there any error messages shown in the Output Window, Script tab?
If the MP3 files have tags then you could use/adapt the Sort Music by Tags preset from this post to put the titles into the filenames.