Testing mp3 player memory

Hi there. There is freeware / shareware available called h2testw. This free software will write test data to your device and then verify it has been stored correctly. By this method it can tell if a device has real or fake memory. The program will test any free space on the player so will work best when no music is on the player. The software can also be used to test USB memory sticks and phone / camera memory. I have a copy of the software on my public skydrive. Download it from http://cid-9252ebea9e3d9865.skydrive.live.com/browse.aspx/.Public. Hope this helps.