What is the optimal stream setup for HD (720p/50 fps)?

Video Codec: H.264 Profile: High, if not available: Main Level: 3.1 Keyframe interval: 2 seconds Frame rate: 50 fps in full frames (50p) Output: 1280x720 Bitrate 2,500 kbit/s – 6,000 kbit/s Audio: AAC or MP3, stereo, 44.100 kHz, 96 kbps without commentary, 128 kbps with commentary Note: please do not send an interlaced signal (720i)