QUOTE(hosiery2u @ May 10 2010, 03:18 PM)
Because all blu-ray copyrights owned by Sony.
Wrong. The patents for the physical disc belongs to Sony AND Philips, who so happens also invented the Compact Disc.
But a Blu-ray Disc has more than just the physical patents (how the physical structure of disc is made). It has patents on the blue/purple laser used, the algorithm from which data error correction is made, the hard-coating used, the video encoding methods used (each of the MPEG-2, VC-1 and MPEG-4 have over a hundred companies holding patents), the audio encoding methods (the PCM standard, Dolby and DTS) as well as the Java scripts used.
QUOTE
And all these copy protections also made by Sony.
Wrong. There are TWO copy protection schemes that can be employed on a pre-recorded video BD. One is AACS, which is owned by AACS LA a consortium made up of many CE companies AND Hollywood studios, one of them is Toshiba. The other is BD+, which is by Cryptography Research.
BD+ is an optional encryption and almost always used by Lionsgate and 20th Century Fox. Fox is the studio that insisted on BD+ to be a part of the BD standard. Otherwise, they would not have committed to BD.
And just so you know, AACS was also used on HD-DVDs.
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If you buy a Panasonic, Sharp, Pioneer... blu-ray player, you also paying to Sony as well.
Wrong. If you buy a Panasonic, Sharp or Pioneer BD player, those companies get their own share of royalties because they own patents pertaining to the BD standard. Panasonic may even get the biggest share.
QUOTE
I was just wondering why Toshiba given up the HD DVD battle, if Toshiba win the battle, maybe Toshiba won't change all these copy protection continuosly.
Let's see why Toshiba gave up the HD-DVD battle... 1) they sold their first and second gens at 1/5th the cost of making them without ever hoping to recoup the cost (they sell hardware not software); 2) those players were basically a PC running off a software with a GPU, which meant that startup and playback is really slow; 3) the capacity is only up to 30GB which means that for a 3-hour long movie, the video bitrate will suffer and there would not be lossless audio; and 4) after Paramount betrayed the BDA by siding with HD-DVD late 2007, Warner (which owns the rights to distribute HBO content as well as New Line) sided with the BDA exclusively on January 4th 2008 and within three weeks Paramount and Universal followed suit.
fuad