Try it with an authentic OE map DVD instead of a copy that you downloaded and burned. It will probably work fine with an original DVD. Many people have problems getting their MKIV computers to successfully read copies; but they will read a stamped disk just fine.

Or, you could replace the DVD laser with a new mechanism.

__________________
SOLD
2000 E38 750iL Highline Edition, Upgraded with the lastest 2006 X5 Electronics
MKIV Navigation, 16:9 Display, Bluetooth, TV/Video with Backup Camera, Sirius, and Aux Input