I have 3 systems all PC based
When I was using Players (3yrs ago) I used the JVC Triple Tray units which are now no longer available. I still have 2 in storage.
Seems like most folks that are purchasing new players are going with either the RSQ units or Acesonic units. Many of these units are feature rich but most of those features are not really needed to play karaoke. A simple unit that handles 2 or more discs, has a key changer, Mpx function, can handle CDG & VCD would probably be the only thing you would need. Most of the other features really do not come into play.
Of the players currently available on the market these would be my choices:
www.karaoke.com/cgi-bin/WebObjects/Kara ... ?key=43016
http://www.acekaraoke.com/acesonic-dgx- ... layer.html
http://www.acekaraoke.com/hpnrplv630.html