SRS Circle Surround enables audio professionals to encode up to
6.1 channels of
discrete program material for transmission via any two-channel medium, such as
broadcast television or radio (including digital) or two-channel Internet
streams. Circle Surround-encoded material can also be stored for playback over
two-channel mediums such as VHS, PC and console games, DVDs and CDs. Circle
Surround-encoded material is backward compatible with all existing playback
formats from mono to 5.1 channel surround sound decoding.