Points to note:
- if the framenumbers in your celltimes.txt are from an NTSC DVD, you need to multiply by 0.8 to take account of 3:2 pulldown
- CCE starts at 1hr 0min 0sec 0frames, so you need to add 86400 frames to each number.
- Even though the frame rate is 23.976fps, CCE assumes 24fps.
- In CCE SP2, the chapter import broke the pulldown pattern. I went back to SP.