'04 M3 with MKIV. Some time back in February I downloaded V31 and upgraded the firmware from some older version (don't really remember what it was) and everything appeared to go OK. Successful confirmation from the install, navigation worked, had the perspective view, etc.

The first time I went to play a CD after the install (maybe days/weeks) the CD player would swallow the CD but it wouldn't play and then it was a pain to eject the CD. I had to let the car sit off for several minutes until the display would close before it would eject. Is there any way this could be associated with the firmware upgrade to the Navi unit?

I tried reverting back to V27 and then to V32 (both successful installs) but it didn't solve the problem.

Not trying to hijack this firmware post, but not knowing any better the two seemed somewhat linked. Recommendations on other posts to look at or any help here would be much appreciated!