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Interesting Facts. By Jeremy Boecker. Post-DVD Technology. Blu-Ray Discs (BD) HD-DVD HVD. Comparing Blu-Ray & HD-DVD. Both use Blue Laser technology ( λ =405nm) Both have the same physical dimensions of a CD / DVD Quad-Layer technology -> 200GB/disc!. HVD. Holographic technology
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Interesting Facts By Jeremy Boecker
Post-DVD Technology • Blu-Ray Discs (BD) • HD-DVD • HVD
Comparing Blu-Ray & HD-DVD • Both use Blue Laser technology (λ=405nm) • Both have the same physical dimensions of a CD / DVD • Quad-Layer technology -> 200GB/disc!
HVD • Holographic technology • Can store 1TB to 3.9TB of data per disc! • 1 Gbit/sec transfer rate
The Super Audio CD (SA-CD) • Uses DVD storage technology • Music sampled at 64x more samples/sec than regular PCM sampling
Why the rainbow colors on CDs? • Constructive / destructive interference of the white light
DTS vs. Dolby Digital • DD uses many sophisticated data compression algorithms • DTS does not • Typical DD Data Rate: 448kbps • Typical DTS Data Rate: 754kbps • Dolby Digital is better
Random Cool Facts • CD’s are dishwasher safe • Dual-layer skip
References • http://electronics.howstuffworks.com/dvd-comp3.htm • http://news.softpedia.com/news/The-chronicles-of-a-futile-battle-Blu-Ray-vs-HD-DVD-631.shtml • http://www.optware.co.jp/english/index_tech.htm