RIMM streaming video file
The RIM proprietary video format (RIMM streaming file) consists of a header, a list of frames, and a footer.
The file also contains a descriptor which stores additional metadata. The location of this descriptor depends on the recording destination. If the recording destination is a file, the descriptor is located at the end of the header, before the list of frames. If the recording destination is a stream, the descriptor is located after the list of frames in the footer.