error when trying to move DVD files

[special]

Video players in general can deal with a few corrupt bits/bytes. No one will notice if a pixel on a particular frame has a wrong value. People will complain if the video stops playing.

So my guess is that the file is indeed corrupt but the video player ignores it and keeps going.

As a test, you can try to copy (not move) the file to a different folder on the same drive. I am curious if you still get that error.