Completely different SD card.
However, I am using windows to transfer mp3 files using mass storage support (and not desktop manager).
With the new SD card I formatted it with the BB and then popped it in a reader to transfer the files but windows didnt recognize the BB format as formatted. That is when I enabled mass storage support and used XP to transfer the files to a new drive.
Having said that there *might* have been the same mp3 file on both cards.
It seems stable with the card out. If it DOES stay stable I will put the card in and format it but put no media on it.. if after that it stays stable I will put in the same songs and see what happens. I would be surprised that certain files could bone a BB but I have been surprised before.. thanks for the suggestion.
I will post the results this weekend.