Honestly I have no heard about any drives being able to use rawdump except the LG DVD-Ram Drive. i'm not sure the model number. It says other drives might work but I have not heard of anyone using anything else.
Myself I just bought the LG DVD Ram Drive online for $22.00 and then went to Microcenter where they had a Dual Layer Lightscribe 18x dvd burner for $34.00.
So i Just run two drives in my computer.