i am having problems with corrupt files on the hard drive.

i have formated it and the problem was solved, but the next day happens the same.
i tryed to scandisk and repair but when veryfing folfers and files appears the message : "IO Disk Error"

I tryed to deleted the corrupt files with ketronFT software but it crash.

I believe that is something wrong with my disk. I never opened the keyboard but a friend told me that the hard drive is like the laptop ones but the OS only recognize it if has 6GB of capacity.

Anybody has ever bought a hard drive for this keyboard ?(not from the ketron support).