[BooBoo]

I feel MicroStudio can still help you. It is the only program I know of that can rip multisession CDs regardless of the CD drive version. You could:
Use MicroStudio to rip the CDs
Import the BIN files into your CAVS (if that is possible)
(if not) burn the BINs back out to a single session CDG
Then import that CDG into your CAVs

I know its more trouble but it is a way...

Good luck..

PS Even Microstudio has a problem ripping multisession CDs, but the problem can be overcome.