Most of the times when I play music files with the music player of my KRZR (not the Java player but the other one) and I close my clamshell my phone will somehow "disconnect" my memory card. The little display on the outside will say "Error" or won't respond at all. Whenever I play music files from the internal memory though, there doesn't seem to be a problem. Also, sometimes it will continue to play the mp3 from the memory stick but when I open the clamshell it will say that the MicroSD was disconnected while it definatly I still in. I thought the vibrance from clapping the phone shut could be the cause but even when carefully doing closing and opening it, it happends.
I've formatted my MicroSD card and that did the trick... for about 5 minutes though. Im wondering if more people had this problem. If not, I might just buy myself a new MicroSD card.
If it -is- a Motorola problem, im reluctant to send it in. I've read some reports that replacement models can be much worse. Can someone confirm this?