You can use any file.
Just make sure that your incoming timecode is in the range that Catalyst supports:
- Hours of Timecode are ignored
- Highest Timecode frame number is 65535 or X:43:41:10 (for 25 fps setups)
Select either Midi or SMPTE sync (don´t forget to activate Sound In for that)
That´s it.
And make sure the sound input minijack port is fine - I had a show stopped yesterday because of a broken input and movie staying in frame 0...