I have two USB hard disks. One mobile disk using power from USB the other a desktop hardisk in an enclosure which uses external power. I have Mandrake 10.0 installed on my HP Compaq nx9010 notebook and my desktop pc clone having AMD Athlon 1700 XP processor. I can't play video files (mpg and .dat) from either of my external usb hard disks. I used fat32 and ext3 file systems but nothing works on Linux. But I can play video from these disks when I boot into WinXP. I thought that it was something wrong with USB harddisk and Linux but the speed seems to be OK . So it could be something wrong with Xine and Totem players. Any suggestions?