

OpenEXR - an open and non-proprietary extended and highly dynamic range (HDR) image format, saving both Alpha and Z-depth buffer information.You can specify the encoding used to save the MulitLayer file using the codec selector (ZIP (lossless) is shown and used by default). Each layer stores a renderpass, such as shadow, specularity, color, etc. MultiLayer - an OpenEXR format that supports storing multiple layers of images together in one file.Re-saving images results in more and more compression and loss of quality. JPEG - Joint Photographic Experts Group (name of the consortium which defined it), an open format that supports very good compression with little loss of quality.Iris - the standard Silicon Graphics Inc (SGI) format used on Unix OS machines.To be used only for previsualization of animations (Play button). HamX - Blender's own self-developed 8 bits RLE (Run Length Encoded bitmap) format it creates extremely compact files that can be displayed quickly.The port number is specified in the OpenGL User Preferences panel. Frameserver - Blender puts out frames upon request as part of a render farm.

You must have the proper codec installed on your computer for Blender to call it and use it to compress the video stream through FFMPEG, but there are preset formats to choose from, such as DV, SVCD, and DVD.
