Write Speed

Everyone on the mssg bpard says to write at 4x for saturn games, but the lowest mine will go in nero is 8x is this ok, i burn dreamcast games at 12x and they work.
Burn games at whatever speed that works well for you. What works on Dreamcast isn't really relevant, since it has a nicer CD reader. Try some stuff on Saturn and use whatever burn speed works for you. Really, the media and burner you're using matter far more than what speed you burn at.
thats pretty meaning less without a model number for the drive

generally speaking if youve got a reasonable burner, you will be able to burn pretty much anything at full speed anyway, it only tends to be the cheaper or older drives that create problems