On 10/21/2014 08:14 PM, Felix Miata wrote:
> Other than selecing source and destination, and deselecting create/delete
> image (aka on-the-fly), I used only defaults, resulting in (auto) writing
> speed 22713KB/s (16.49x) in the upper pane.

I don't know why the write failed, but just thought I'd point out that
writing at max speed will make a lot more coasters.  I always write at 1/2
the max speed of the media or the drive, whichever is slower, and get more
reliable copies and never a coaster.  You might give that a shot and see if
it helps.

-- 
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