BlackBerry Pearl 8100

So I have a 2gb transflash memory card, I had a few files on it that the blackberry didnt recognize and was a little stumped until on the blackberryforums, I ran across the fact that I had to format the memory on the blackberry first. So I formatted it and then pulled out the transflash card, slid it into the sd converter, and popped it into my computer. Pulled up the card and now it has a blackberry file system on it. Ok, so I go to the music file then try to copy some file into the file only to get the error, this disk is write protected please remove the protection. ????? Any clue guys? I also tried to reformat the card in my computer and it wouldnt let me for the same reason. So help please.