If you can find a JVC triple or single tray player on E-Bay I think this would be your best bet, I have one triple tray, one single tray and a Cav's Piece of crap that I wish I never bought worked great the first couple of uses then lost all graphic functions, There are some DVD players that will read CDG format and work extremly well I have two of these and both you have to use a remote control to set up for the next song but they are great in a pinch (Apex DVD PLAYER) however i pray i never have to go back to the disc system but never hurts to keep it handy in emergancy cases.
Edit: The Apex Players you can get at any pawn shop for 10 to 25 bucks.