Is the "Scan Video For Errors"...under the video tab in Vdub Version 1.4.10
the same as "Check Video For Freezes"...under video tab in Vdub Version 1.4c (Mp3_Freeze)?
I know that in the latter it actually runs the movie(at a slightly higher speed while scanning) then lets you know about the bad frames detected.
Whereas the other version does'nt run the movie ,it just opens a window with a progress bar.