I don't recall anyone ever mentioned the ability to import a zip file into Microstudio. This would be some sort of CDG zipped file? From Where? I believe the only way to play and see a CDG file through Microstudio is to lay down an original or copied cdg, and then play through Microstudio. I might be wrong, but other than just audio only, I don't think you'll find a way to see the graphic content.
