It will trim and copy any file........except this one!!Generally you can "trim and copy source file" without opening the file first.
Start VRD, go to "tools", select "trim and copy...", select the file.
It will trim and copy any file - data, text, pdf, exe, etc.
Also, as a Hauppauge user, some versions of the WinTV application had been known to insert garbage at the start of the mpg file.
(you had to trim off the first few MB to get it to open - I don't use that app any more myself)