1440 is anamorphic 1080 - comes out as 1920 automatically.
iM 'axes' interlaced sources - so, 720p has the same quality as 1080i ...
for sure you can choose 1920x1080i as export size/format - but has little effect on quality, bloats only file size.-
using 720 automatically deinterlaces (no such thing as 720i)
Unfortunately, I got the message: A file compression error occured. The movie could not be properly compressed. The movie may contain some data that is invalid for the type of compression selected.
I've now exported as full quality. It's a huge AIC MOV, hope that IDVD will encode it OK. Otherwise I'm not sure what else to do?
Is it worth re-encoding the AIC MOV using Mpeg Streamclip or other software at all?