PAL to NTSC Conversion using CCE

I have figured out the most issues about DVD encoding myself, however, I need some help. Being annoyed by the higher pitched sound of PAL-DVDs, I decided to transcode some into the NTSC-Format. This works fine, if the PAL-source is 100% progressive. However, there are some TV-series who are not. Since they originate from a NTSC source, there would not be any quality losses, because of the lower resoloution. I already tried some deinterlacers/IVTC-filters, but they seem to have problems with hybrid frames. So, here is my question: Is there any way to restore the 2:3 pulldown 29.97 FPS interlaced Video?

TRy asking this question in the AVISynth forums. CCE is not the right tool for format conversions.

Interlaced video does not have 2:3 pulldown, it is a true 29.97fps video stream. 2:3 Pulldown is on only used on 23.98fps progressive video.

Mmmhhhh... I did add a fake audio track, but it happens anyway. However, since I tried the newest Avisyth and Decomb versions, it's no longer neccesarry to create multiple scripts. I managed to get a clean output out of a heavily interlaced PAL input (i. e. Star Trek: The Next Generation). If this works, anything will work.