Remarks:
Many do not understand the importance of a karaoke seller to have PPM license for their system.
For company without PPM license (unknown online seller), they very hard to obtain original MV and songs. Not only that, if found out by authorities, they will be sued to court.
This is the reason why many people bought unknown karaoke brand machine, after few months/years, there are no longer new songs, and seller is missing for after sales service. The machine will then need to be thrown and need to buy again.