My "home user" clients aren't interested in MP3 players on their instruments.
Not ONE of them even asked about it...not ONE!
The same goes for playing over SMF...it's a topic that seldom, if ever, comes up.
In my experience, the people most interested in these karaoke features are the "pros".
My "home user" clients want to actually "play" their instruments...either alone or with some friends.
Strange, eh?
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.