This seems to be the right place

I have tons of individual backup discs that I originally made on a D1600 (at times 2 of them midi'd together) but have since sold them and using Cubase, etc. (PC)
Was wondering what type of program/converter I could get to rip them off the backup CD-RW's into .wav files, mp3, or whatever u recommend? I also noticed mention of Korg software on here but have no idea where to start:(. I had a D3200 which u could upload USB, but I can't even get the computer to recognize the discs nor the extensions... If so I guess I could search from there?!?!
TY all in advance for your time,
Dave