IMHO BMW have adjusted the laser light to a tolerance where it makes the use of many DVD-R/DVD+R disks unuseable but would still allow the use of original disks without problem, you cannot really blaim them for a move like this.

When I get the time I will check the firmware for parameter adjustment in this area, there should be no reason we could not put it back to what it was

Note, I have nothing at the moment to backup this statement, but with the many problems I have seen other forum members having, it would seem a likey option.

Odia.