I think I’m all set, may have just been that I didn’t copy the entirety of my library over, so songs.dta was likely referring to songs that weren’t there and crashing the game. After a full copy, it works fine. Gonna give a look through tomorrow to confirm everything runs like it used to. This process to recover was almost too easy. Time to make an image of the disk.
You are about to leave Rhythm Gaming World and access the external songs DB. While no song or file sold for commercially available videogames is hosted there and only fan generated content is allowed, Rhythm Gaming World has no direct control over the database and no files are hosted here. Alright, we had to made you aware of this, now you can visit the database!