Hoping someone can help me here.
I have 1080p Cineform files of about 4 hrs that I have to give someone who is Mac only and wants to do an edit (highlights) on there Macbook pro.
They dont need full 1080p so I thought 720p would lighten the load for the the Macbook.
She is editing on iMovie only, does not have FCX.
I thought DnxHD might be ok, but a quick Google says that iMovie cant ingest that, Is this true?
I thought ProRes, but I dont think she can install the Pro codecs pack unless a version of Final Cut is installed on her Macbook, is this right?
Any suggestions? HDV maybe?
Any input appreciated.

In the past iMovie accepted AIC files. Now, I don't know but you can go to Apple's site and find out.

Forgive me William but where on Apples site are iMovie ingest specs?

GoPro acquired Cineform a while ago & AFAIK if you download & install the free GoPro Cineform Studio then this will install the Cineform CODEC GoProCineForm Studio (http://gopro.com/software-app/cineform-studio/)

Thanks Nigel,
I did think of that, but opted against it for simplicity on her side.
I just gave her 720p AIC files, and in another folder 1080p Prores422.
I figured if she did nothing extra, she could open the AIC files in quicktime and I know they will slip into imovie ok. And if she wants higher quality, she can use the Prores if she downloads the Procodec pack from Apple.(if she upgrades to Final Cut).
FWIW, will a stock standard Mac without Final cut and the Procodec pack read a Prores file in Quicktime player?

You need to install FCP to get ProRes.

Well that is strange isn't it.
Any Windows PC with Quicktime can decode ProRes,
Any Mac needs a Pro Codec pack to even preview it.

AFAIK you can play ProRes files in QuickTime Player on a Mac but that is playback only it doesn't mean that you can use the CODEC for encoding.