Whats the Difference between HD DVD and BluRay? - bluray recorders
I'm trying to get together a list of Chirstmas and asked me whether I should wait to buy a Blu-ray or HD-DVD or VCR.
Tuesday, February 9, 2010
Bluray Recorders Whats The Difference Between HD DVD And BluRay?
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Blu-Ray!
Blu-ray HD-DVD Comparison
The main rival Blu-ray Disc is HD DVD, championed by Toshiba, NEC Corporation, Microsoft and Intel. The HD DVD has a smaller lower capacity per disc theory (15 GB vs. 25 GB), but now (in 2006) benefited from the production of pre-recorded (ROM) and recordable media. Blu-ray critics believe that the 50GB hard drive is unlikely to be profitable, while the supporters of the Blu-ray Disc BD hope that production costs closer to those of HD-DVD, though the production increased. The Blu-ray version of the Adam Sandler movie Click was published October 10, 2006, the first dual-layer version. The aim is to use Sony's 50GB dual-layer DVDs at up to nine hours of HD video content. Alternatively, studies may choose on the release of Blu-ray Disc, VC-1 or H.264 instead of MPEG-2 as an alternative to save four hours HD content in one layer (single) BD.
With respect to the compression of audio / video, Blu-ray Disc and HD DVD are similar to the sREA: MPEG-2, VC-1 and H.264 for video compression and Dolby Digital (AC-3), PCM and DTS for audio compression. MPEG The first generation of Blu-ray Disc will be used to use 2 (currently in its standard DVDs, when encoded on a video resolution and a much higher bit rate) used much higher than on conventional DVDs, while the first HD DVD releases that were used more efficiently VC-1 codec. Blu-ray Disc allows a higher maximum video transmission, as well as potentially higher average flows (due to greater total disc capacity). In terms of audio, there are some differences. Blu-ray Disc allows conventional AC-3 audio tracks at 640 kbps, which is greater than DVD / HD DVD kbit up to 448 / s. In addition, Dolby Digital Plus support for HD DVD players is imperative to a maximum of 3 Mbit / s and optional for BD players and the support for a higher bit rate of 4736 Mb / s.
HD-DVD and Blu-ray Disc, the 24p (traditional movie) frame rate, but technical implementations of this mode between the two different formats. Blu-rayDisc supports 24p with its original schedule, while HD-DVD-30P calendar used 24p (replacing missing frames by repeating "range indicators). [46] There is no impact on the resolution of images in sequence, repeated many images are known to introduce subtle motion artifacts, especially in moving camera shots.
On November 29, 2004, the four Hollywood studios (New Line Cinema, Paramount Pictures, Universal Studios and Warner Bros.) announced non-exclusive agreements for HD-DVD. Since that time, Paramount and Warner chose to release titles in Blu-ray Disc and HD DVD, while Universal has announced exclusive support to HD-DVD.
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