Re: Dreamcast Emulation...
Dreamcast emulation isn't perfect yet and it requires a very fast computer to emulate it. I've tried and it's not worth.
Re: Dreamcast Emulation...
There are DC games that work good enough on Chankast, which is the only DC emu that's worth the try IMHO. There is no way that you can use originals in the emulator, since your CD/DVD drive can't read GD-ROMs (the DC format).
Just download some ISOs (do not ask for them here!).
Re: Dreamcast Emulation...
Or use the DC's modem and some little artifacts to dump your own ISOs :p