I'm using FC6 on a 64-bit Athlon system. I have a 160mb external USB hard drive connected as /dev/sda1. The ACOMDATA drive is a year or two old - I use it to record HDTV as transport files and then play them back with xine or mplayer. I've been doing this since I bought the drive. All of a sudden today when I started playback, xine would freeze and the hard drive led would display red for long periods of time. When I try to unmount the drive, I get an error message that data is being written to the drive but I can't find any applications that are accessing the drive. I get the same exact behavior after re-booting and after connecting the drive to an FC6 32-bit laptop. The red led even comes on in the same manner when the drive is unmounted. I did fsck on the drive: [root@localhost /]# fsck /dev/sda1 fsck 1.39 (29-May-2006) e2fsck 1.39 (29-May-2006) /dev/sda1 has been mounted 160 times without being checked, check forced. Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information /dev/sda1: 20/19546112 files (0.0% non-contiguous), 31719459/39071962 blocks This drive never did this before and the other ACOMDATA drive never has done this. Xine and mplayer work fine on transport files stored on the internal system hard drive. I don't see any problems reported by fsck. Any ideas on what is wrong? Is the drive dying?