IO Error

[longshanks]

Got an 'IO Device Error' message on a file when trying to back up data to my ext Sata HD connected via eSata. What causes this error?

 

[Olly]

did it become disconnected somehow ?
run a scandisk on it

 

[Matt-Page]

Run scandisk / chkdsk /F on it.

 

[longshanks]

Ok guys, it was the DVDRW.