Hi Roman

Many thanks for the advice. However, I already run CMP with the optiions enable that you mentioned. I am now beginning to think that it is a drive (or some other HW problem), as I moved my GBA ROM directory to another drive and everything seems to be OK. Can't understand it though - I would expect a 6 month old SATA drive to run without errors for longer than this.

Anyhow, Many Thanks

-= The Ade =-