. Yep, a PSR2000 created MFD file is not automatically recognized by the PSR3000. Part of the reason is that many PSR3000 styles & sounds (voices), as well as the names given them, are different than on the PSR2000.
Fortunately, using Michael Bedesem's excellent (and FREE to boot) "MusicFinder View" utility software, your friend's PSR2000 MFD file can be CONVERTED so it will be recognized and loaded into his new PSR3000 keyboard. You can download the program HERE: http://www.svpworld.com/util_mfdview.htm
Many thanks from the bottom of my heart to Michael for his continuing generous work & support he's given to us, the Yamaha USER community.