Originally Posted by Ensign
That pretty much describes what I was experiencing.
The part number for the DVD drive that I used is 65 83 9 241 764
bavauto.com sells the part for $111.95 plus shipping
Update on mine. I had been using a DVD that was a copy of the 2011 map DVD. I bought it from a member on here. It had been working fine for 5-6 months. I decided to go back to the 2008 DVD that came with the car as a troubleshooting measure before I went down the path of replacing the DVD drive. The unit has worked fine for 2 days so far. I'm hoping maybe it was just a problem with the DVD.