[Michael Thomson]

Hi Ollie,

Here’s some answers for you.

I last used “1440 x 1080i 25 high quality” to render. Will that compress the footage?
Depends on how your rendering. I presume your not using AVID for this because of your mention of CS4?!? If your using another program such as After Effects how much compression you add will depend on how you have captured, exported and rendered the footage. Codec selection is the critical point here. If your capturing at DV25 (in AVID) that’s good but if you export as a PhotoJPEG then of course you will be compressing it.

I’ve read film runs at 24p (not that I’m working with film yet) but there’s also an option for “hdtv 1080p 24 high quality” which I assume is for compressing to mix with film.
No 1080p 24 is for working with footage that has been shot 24fps. Putting 25p or 50i footage in a project with those setting will not make it 24fps, if anything the playback will be screwed. If you want a film look but aren’t finishing on film try 25p. The frame rate stays as it should for PAL TV/Video playback and saves a whole world of pain.

There’s also options for “hdtv 1080p 25” and “hdtv 1080p 29.7” I assume the 29.7 is ntsc.
Sure is 🙂

Whats the difference between “1440 x 1080i” and “hdtv 1080i”? Is hdtv 1960?
HDTV 1080i is 1920 x 1080 pixels i.e. full broadcast HD.

Hope this helps. Like Grinner i can’t remember the last time i used AVI. In my experience there are much better formats out there. AVI creates huge problems and is limited by file size when exporting from AVID.