Some articles on theora, specification:
History - Theora I Specification
... The Theora I bitstream format was frozen in June 2004 after the libtheora 1.0alpha3 release ... encoded with any implementation of the Theora I specification since the format freeze ... The Theora I Specification was completely published in 2004 ...
... The Theora I bitstream format was frozen in June 2004 after the libtheora 1.0alpha3 release ... encoded with any implementation of the Theora I specification since the format freeze ... The Theora I Specification was completely published in 2004 ...