Supported video codecs in Blender When I asked this question it was my understanding that H.264 is a sort of best practice when delivering videos for high definition display. As I am delivering most of my video work to stock libraries I had a look at their preferences and I discover they want Photo JPEG or Apple ProRes 422. But when I have a look in Blender I cannot find Photo JPEG and Apple ProRes. Are those codecs not supported ? If not, can you convert H.264 to those codecs (or is this a stupid question)? 
I would prefer to do the video editing in Blender and not having to go to Adobe Premiere or whatever ...

After reading the comments I understand it is not possible to convert H.264 to the mentioned codecs. Is good open source software (OS X) available to produce either a Photo JPEG or Apple ProRes video based on the image sequence produced in Blender ?
In Blender choose Quicktime in the output section of the Render pane. Then you can click on "Codec" for a dropdown menu with a list of options.