Error creating BluRay ISO image file in PE 15
I quite unexpectedly ran into a problem that I have never experienced before: got an error message in the process of creating BluRay ISO image file.
This time it was 2-hour movie and the Burn In Progress process was running smoothly until it reached 97% point. When it reached 97% point it got back to 0% with the 'error' message in the left bottom part of the screen (see the image below)

What IS going on?
Please HELP!!!!
Lev.
