Recently I got an 8gb Micro sdhc card for my optimus 2x. I put the card in my phone and connected it to my PC. I put some music files in the "_ExternalSD" folder and when I disconnected my phone from the computer, the phone could not find the music files. So I downloaded Astro to see if their were any files in "_ExternalSD" and all I found were the two folders "lost.dir" and some other folder (i think it was "temp" or something). I then tried to manually move some music from my phone's internal storage to the external sd. When I tried to move the music files to "_ExternalSD" it said that the move failed. I finally decided to unmount the external sd card and all of a sudden the music files were found. I could listen and locate the files in Astro only when the external card was unmounted. When I mounted the card again to see if my speculation was right, the files "disappeared" but "reappeared" again when I unmounted it. I know that the sd card is supposed to be mounted to read the files, but in my case it's the other way around. Did I do something wrong while transferring the files? Is there something I can do to fix this?