I was thinking that I would use this to supplement all of the other materials I am using while I'm driving during the day. I don't think it can hurt and will put to use some otherwise wasted time.
I agree, don't buy Audiolearn! If you really want to listen to something while driving try the Examkrackers audio osmosis set. I think it is awesome, while it is on the pricey side, you can try to find a used one on ebay. The set is intended for MCAT takers not DAT.