I'm editing HDV in Premiere Pro 1.51. I've been reading today (in between bit of work ) and it seems that the cineform codec is not quite complete without purchasing Aspect HD.
What is read is that coneform AVIs cannot be used in other applications (other than Premiere Pro 1.51) without the Aspect HD purchase. Most specifically mentioned is After Effects 6.5.
Anyone running fowl of this limitation? I must get around to proving it one way or the other.