I have tried looking all over, and haven't found anyone else with this issue. So I have an sd card in my storm, the 8gb that came with it, and put a good bit of music on there. about 4 gb's worth. At first it was all right. But then I added a couple more cd'sonto it, and now they won't show up. Now i tried using Windows media player sync, BB media sync, itunes, roxio, and even tried to drag-and-drop from my c:drive to my f:blackberry drive, and about half my music shows up in my media player, with all the other tracks in the "unknown" folder, but when i load up filescout, everything is there and as it should be. I formatted it. twice. I tried the repair function in the memory tab in options, battery pull, and everything I could think of short of a complete system wipe. If it's out there, chances are I've tried it. So my question is......WTF IS GOING ON??!!
Pull the back cover off and slide the SD card out. Put it back in. If you reformatted it, there is a chance you erased everything. Check the contacts when you pull it out too. There may be some corrosion.