Same situation here. Rocksmith Tool Kit works. I took the 6 GB-Version. Thank you very much for it!! BUT I can't select any DLC for platform conversion in the Converter! Any idea? Find the C-Drive in the file contents in the toolkit file. Make a CDLC file of what you want to convert then click and drag into the C-Drive. You'll be able to find everything in the file you made in the C-Drive. Now for me it was tough to figure out how to get everything back out. What I did was delete the converted files and then removed them from the trash bin back to my desk top and that worked for me. I spent the better part of 4 hours trying to figure this out after accidentally upgrading my OS and THIS POST was the key! Thank you!! I was about to give up, but this saved me!