The following message will always show when you open Microstudio if you have a blank disc in the drive or if there is no disc in the drive at all. If you have an original Karaoke or Audio disc in the drive, you will not see this message.
"'Test Unit Ready' Command failed on device 0:0:0 Device contains no disc or is not ready (04h 00h 02h 02h 04h 01h)"
All you need to do is click Ok. The program will then open without any problems.
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Bryan, MTU
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