Yes, this has been done via a DIY IDE controller. It has been discussed on
this list before. You should find some info by searching to archives for
"Bitmaster", or even "IDE Controller"

--Drew Vogel

On Wed, 26 Dec 2001, Moritz wrote:

>Has anyone managed to attach an hard drive to a dreamcast or has anyone a
>clue if this is possible? (I'm not talking about mouting dreamcast via nfs.)
>
>    - moritz
>