Oh cool, another karaoke user. You should know that many, many professionals as well as amateurs use Padus DiscJuggler to back these babies up. However, I have sourced one unprotected disc to test with and CloneCd has no problem...protected discs just need to be played with until the right combo of settings is found. Here's a read profile for data and audio subs with quality. The audio read speed is 8x.
You could try making FirstSessionOnly=1 to defeat any protection in the second session if it exists. Change FastErrorSkip=0 to a "2" if you suspect some type of error based protection.
These profiles are saved as .CCP files and can be opened in a txt editor