I am trying to run IVTC on a 29.97fps Interlaced clip. I open the clip in VirtualDub and start the frame-server. And when I try to open the .vdr from Tmpgenc, it goes "... .vdr unable to open or not supported". I have tried several installs and un-installs... no luck

. Anyone has any ideas.
The IVTC (inverse 3:2) in VirtualDub seems to work, but the audio gets out of sync. So, I am trying to get the automatic IVTC in Tmpgenc do the job.
TIA, DSJ