[HELP] 29.97 interlaced out problem

[Selur]

I guess I will need to interpolate 59.94?

yes, it's simple.

If you have 30000/1001fps interlaced content, it contains 60000/1001 fields, which you would convert to 60000/1001 content using bob ideally.
If you want to go the other way around and turn progressive frames into fields you should use double the frame rate progressive content to get half that frame rate interlaced content.

So, if you feed Hybrid 30000/1001fps to Hybrid and tell it to make interlaced content out of that it will produce 15000/1001fps interlaced content.

Cu Selur