No sound First version after conversion of P/META into XML Valid 1/0 (Mono) Single Monographic Sound. A system using a single discrete audio channel (Monophonic). First version after conversion of P/META into XML Valid Dual mono First version after conversion of P/META into XML Valid 2/0 (Stereo) Stereographic Sound First version after conversion of P/META into XML Valid Stereo A and B A system using two discrete audio channels, typically derived from two transducers geographically separated, to give slightly different audio perspective of the same event. First version after conversion of P/META into XML Valid Stereo M and S A system using two discrete audio channels, typically derived from two transducers geographically separated, to give slightly different audio perspective of the same event. First version after conversion of P/META into XML Valid Multi-lingual First version after conversion of P/META into XML Valid Surround Surround Sound First version after conversion of P/META into XML Valid Multi-channel First version after conversion of P/META into XML Valid 2/1 (Multi-channel) First version after conversion of P/META into XML Valid 2/2 (Multi-channel) First version after conversion of P/META into XML Valid 3/0 (Multi-channel) First version after conversion of P/META into XML Valid 3/1 (Multi-channel) First version after conversion of P/META into XML Valid 3/2 (Multi-channel) First version after conversion of P/META into XML Valid Home Theatre 5.1 A system comprising five discrete, full range main channels (Left, Centre, Right, Left surround, Right surround) plus a band-limited Low frequency effects channel: 3/2/1 (L,C,R, LSide, RSide) First version after conversion of P/META into XML Valid Movie Theatre 3/2/2 /L,C,R, LSide, RSide, LRear, RRear) First version after conversion of P/META into XML Valid 7.1 First version after conversion of P/META into XML Valid Other First version after conversion of P/META into XML Valid