If so, anyone have a solution?
I am really starting to regret my decision to buy a car with this system. I don't want to buy the movies or games. I'd rather just be able to add the movies that I already own.
This sounds like you have the GM system, since you mention movies. I don't know much about that system, but I just wanted to post ASAP and suggest that you
not reformat the DMS until one of the experts here replies - generic Windows tools can overwrite the magic signatures on the DMS and cause it to be rejected by the car system. For the normal add-on PhatBox audio system, there are people who can hack a box if you send it to them, but that may not apply to the GM system.