jclaydon wrote:
It would be cheaper and a HECK of a lot easier to buy a program to convert the CAVS files into mp3+g tracks
Your discs are known as "SCD+G" (Super CD+G).  It's an odd duck format that is poorly named, as it actually isn't a CD at all but a dual layer DVD.  They did this so they could cram hundred of songs onto a single disc.  The only downside is most all SCD+G songs are only encoded at 128kbps in order to cram even more onto the DVD.  (There are exceptions, I cant remember which but I recall when ripping that one brand was at 256kbps.).
Anyway, James is right!   
Go buy the Powerkaraoke converter and rip them all to MP3+G.  Go here --> 
http://www.powerkaraoke.com/src/prod-po ... ripper.php-------------------------------------------
As an aside while googling I came across the CAV's page below.  I had no idea they had a free SCD+G creator for download.  So if you ever run across someone with a true SCD+G player that wants to make their own home brew discs, they can.
http://www.cavsusa.com/scdg_make.htm