Please open a support ticket at www.cineform.com/support and we'll troubleshoot this issue from there. Thanks!

I just changed the initialization profile in After Effects to include a 1.33 pixel aspect ratio, and make native 1440x1080 compositions. Supposedly Aspect HD introduces this automatically, but it can be done by going into the

After Effects 6.0/Support Files/intepretation rules.txt

file, taking the bottom line:
# 0, 0, 0, "0000", * = 10/11/"Custom Aspect", *, *, *

and changing it to:
0, 0, 0, "0000", * = 4/3/"Custom Aspect", *, *, *

Ta da!

Old post, I know.

I tried this and it won't work.

AE 6.5 still won't import my Cineform HD AVI's.

Any ideas?