As far as I know ProRes is MAC only.
I would use DVCProHD as an intermediate... or a MOV with the Raylight plugin.
Or the Avid DNxHD codec.
Why transcode? Premiere can handle the native RED files.
Jim: yeah, that was my original plan. But I'm getting very choppy playback when I import the R3D files, even with the resolution turned down. Which is frustrating, because (again) they seem to play much more smoothly in Redcine than in Premiere...
Shooternz: Apple relased the ProRes codec for playback on PCs earlier this year, which is why I can play the clips in the first place - like I said, they're absolutely fine in Quicktime, but jumpy in Premiere.
As I mentioned, transcoding to DVCPro is an option, and it's not that I'm stuck and unable to edit my project. I'd just like to see if there's a way I can do this with ProRes, which is a pretty great codec, especially if I want to work cross-platform: on paper, this absolutely should work, and I'm just trying to find out if there's something I'm missing before I give up and go for another option.
I'm getting very choppy playback when I import the R3D files
I would guess that may be a limitation of your processor, which is a bit older.