Extracting Songs from a Songpack File

Hi

Is the a way to extract songs to individual psarc files form a Custom Created songpack?

I've created several custom songpacks and now i wish i could revert the process... get the individual files for each song.

Song Creator toolkit does package multiple songs into one file, but there´s no reverse processe.

I know i can unpack the songpack but its loads of work just to identify each songs files to pack them up again individualy.