My mx 80 unit is not functioning properly. All the Pianosoft disks and my personal disks all show as unformatted disks. I unplugged both power and serial cord and nothing. The disks will not play-any suggestions or do I need a new unit. If I need a new one-can I buy it on the net and can I upgrade the unit? Thanks Peter
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MX 80
2003-09-06 by pmargiot