Since no one else has jumped in here, I'll try to answer your question. The folks at MTU are quite specific on their website regarding the Karaoke format that they support, which is the CDG format. I don't believe you'll see any reference to any other Karaoke format other than CDG supported by any of their products. This is in addition, of course, to regular audio cd.
Hope this answers your question
Take care,
George