interesting article..... http://babelfish.altavista.com/babel...915%2Fspcl.htm "Releasing the authoring environment of SONY PCL and BD video - While producing 2/3 of software 2 layer. As for "innocence" MPEG-2/37.5Mbps" "In addition, because there is no encoder of the present compressed format concerning 7.1ch sound, you say that becomes correspondence only of linear PCM 7.1ch. By the way, as for sound "of innocence" BD video, linear PCM 7.1ch/ Dolby digital EX (6.1ch) /DTS-ES (6.1ch) it is the schedule which is recorded in 3 types of full rate." "Presently at the same company only MPEG-2 is adopted. "There is no schedule which adopts VC-1, but the midst when detailed examination is done concerning H.264/AVC. Cooperating with SONY, it is advancing also the development of the encoder ", that although it does, you say that also the advantage of MPEG-2 is large." "As for AVC with still new technology, optimum tuning of the AVC appearance becomes necessary. In addition, as for being important, if it is MPEG-2, say that you can encode in real time. It is very important "to be responded to excellent demand, that, it emphasizes that the merit with respect to job is large."