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I thought he had tried a different enclosure and/or hard drive? If not, ans we all missed that part of the equation, EXCELLENT idea..Originally Posted by maxleung 
It seems to me that dropzone's problems with IO errors/buffer under run points to a problem with his hdd, the hdd enclosure, or the USB cable and/or interface. USB enclosures can be extremely cheaply made with bad controllers on them, and the USB connectors can become flaky from bad solder joints. He should try a different enclosure from a different brand and see if the errors disappear. On mpcclub I have read that people often resolve the problem by replacing the controller or the cable.
The Dune's USB ports could also be dying....
It would also be prudent to attach the enclosure with drive to a PC and run a SMART diagnostic to check for interface and hdd errors.

It seems to me that dropzone's problems with IO errors/buffer under run points to a problem with his hdd, the hdd enclosure, or the USB cable and/or interface. USB enclosures can be extremely cheaply made with bad controllers on them, and the USB connectors can become flaky from bad solder joints. He should try a different enclosure from a different brand and see if the errors disappear. On mpcclub I have read that people often resolve the problem by replacing the controller or the cable.
The Dune's USB ports could also be dying....
It would also be prudent to attach the enclosure with drive to a PC and run a SMART diagnostic to check for interface and hdd errors.
Try the same movie on a different hard drive/ and or enclosure/ usb cable and see if THAT is the culprit.
On my neotv550 I sometimes had problems with usb POWERED hubs and it recognizing drives. So on a whim I tried a non powered $1.99 POS meritline 4 port hub and it has worked flawlessly ever since with three drives attached to it. Go figure...























Well, last night, I decided to play the first disk. The graphics and sound were just so AWESOME. My 7.1 surround sound was just great. Then, 25 min. in to the movie..........LOST SOUND....just like my PCH-A300 did when I owned it.