I have the emulator and the roms but....

Well if you've burned a premade selfbooting version, then you'll need a roms disk, just make sure they're in a dir named Roms.

Otherwise you could burn a selfboot one of your own with roms as well, I recommend self boot buddy.

well i did the same thing..i have the boot program and when i made a rom disk nothing happened my dreamscast would not read it abd i have tried many times to burn the roms with the program but it wouldnt work so if u can tell a a program to use and how to use it i sure would be greetful

thanks