Specifications

Archive Service
73
Vision
2
Operation/Reference Guide
The recommended bitrate for high-definition VC1 is 8-12 Mbits.
MPEG-2
MPEG-2 must be encapsulated in an MPEG-2 transport stream. The supported audio formats are:
MPEG Layer I
MPEG Layer II
MPEG Layer 3 (MP3)
AC3
The following table lists the recommended bitrates for MPEG-2 video:
High-definition is supported for playback to a set-top box. The recommended bitrate is 8-12 Mbits.
MPEG-4 AVC (H.264)
MPEG-4 files must be encapsulated in an MPEG-4 stream (.mp4). Files must have the MOOV Atom at the
start of the file for fast start. The audio must be in AAC format. The following table lists the recommended
bitrates for MPEG-4 video.
MP3
A bitrate setting is not required when uploading MP3 files as the bandwidth requirements are modest
compared to video. All MP3 files are uploaded using high bitrate.
MPEG-2 Video Recommended Bitrates
High Full D1 8 Mbits
Medium Full D1 6 Mbits
Low Full D1 4 Mbits
MPEG-4 Video Recommended Bitrates
High Full D1 1.5 Mbits
Medium Full D1 800 Kbits
Low SIF 400 Kbits
The bitrates specified above are for playback on a PC unless otherwise stated.
Tablet users can only view and play MPEG 4 and MP3 files.
Set-top box users can only view and play MPEG 2 and MP3 files.