For my doubting Thomas, see attached pics. Explanations are as follows:
Roxio1 - After capture in the edit screen, notice the thumbnail displays correctly, but the preview pane is black. Buttons to the left of the PLAY button are greyed out
Roxio2 - If you play around w/the buttons (I hit PLAY) all the buttons become active like you would expect (notice PLAY changed to PAUSE symbol), but still nothing on preview pane. Similarly, if you press the FORWARD to END button then the PLAY and forward buttons grey out just as though you ARE at the end, but still nothing plays, and the playhead does not advance.
Roxio3 - Ignoring the edit and proceed to export to computer. These next images happen VERY quickly, less than a second, difficult to get the screen caps. This shows it attempting to process, the blue bar move across VERY quickly and the next image shows up
Roxio4 - Thinks it's complete but of course it's not
Roxio5 - Error message, again at least for me, even though it says it will shut down, it doesn't do that.
Roxio6 - My task manager, you can see it still shows Roxio even though it's not in my toolbar below (because I shut it down manually).
Maybe the OP can confirm whether this is EXACTLY what he is seeing, but from what he described my problem was EXACTLY the same and I wish you hadn't assumed it wasn't.