Custom Soundchoice CDs not working with V4.0

[corriganrc]

I just updated to Microstudio V4.0 and now I can't see any of the custom Soundchoice disks I have (7 of them) I have been able to import from over 100 other Soundchoice, Chartbusters, DK Karaoke, etc disks with no problem. I use to be able to import from these disks on V2.613. The error is invalid source disk. I have a Plextor PX-760A with the latest firmware 1.06 and the latest updates to Windows XP.

I noticed it when I got a new custom disk and attempted to import from it. I went back and checked and all of the custom disks now give the same error.

Any update available for this yet?