I'm not certain about any other kind of Karaoke players, as the only ones
that I used for the past 17 years were the JVC GM-800.
I use to hook up a VCR and play video's behind the words of the CDG's....
Or if someone wanted....they could hook up a camera and then the person who was singing...would be on the screen along with the words! The
superimpose was a real nice feature, along with the 6 disc magazine!