I've build it and only had some trouble with finding the right fuses of the Arduino Atmega 2560 board.
Also there was a little bug on line 45 in the Author's BASCOM-Avr program that kept it from going.
[just remove the &H before Dim Ram(&H8000) to get it working !].
Thomasz Sadzikowski did a hell of a job to make this fine piece of hardware on an Arduino Board !
The only thing it still can't do is of course read protected discs, for instance Nibbled ones. But furthermore it works great !
I translated everything from the original in Polish to a correct English BASCOM-Avr version and when someone is interested they can contact me. And if Edaboard grants me to upload it on their internet pages I gladly will do so !
(av.bemmelen@hotmail.com)