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blu-ray-vs-hd-dvd

Bluray Vs. DVD


To DVDr to Bluray? If you’re a filmmaker and you’re having a tough time choosing between the two, then you better read this.  We will compare their resolution,capacity,compatibility, privacy protection, and price.

Resolution:

Blu-ray plays video in high-definition at a resolution of 1080p versus a standard DVD’s 480i resolution. Blu-ray players offer the best-quality sound and picture for home theater systems. While the DVD and Blu-ray are both compatible with Dolby True HD and DTS Master Audio, the way the discs are encoded makes the sound quality on a Blu-ray disc better than DVD.

Storage capacity:

Current DVDs employ a 650-nanometer red laser and have a recording capacity of 4.7 Gbytes. The Blu-ray Disc’s 405-nm blue-violet laser enables the recording and rewriting of up to 27 Gbytes of data. It can hold 13 hours of video.

Although Blu-ray can’t quite fit an entire series of HD-quality material on one disc, it could potentially fit an entire series of standard DVD quality stuff on one. That’s pretty good, considering the storage savings alone.

Backwards compatibility

Allow users to both read and write on CDs, DVDs, and, obviously, Blu-ray discs.

Piracy protection

DRM is the copyright protection scheme the media industry uses to prevent piracy, and the Blu-ray’s technology in this realm is actually quite exciting. Hollywood wanted a new DRM system that would be more secure than the failed Content Scramble System (CSS) used on DVDs. The possibility exists for users to copy the content of a disc a limited number of times, similar to Apple’s iTunes system.

A lot of Space for features:

Because it has bigger space, you can put commentaries, full-length director’s cuts, and a barrage of “the making of” documentaries all on a single disc. These are the kind of stuff people want and these are the kind of stuff which cannot download online.

Price:

A study performed by Home Media Magazine (August 5, 2007) concluded that HD DVD discs and Blu-ray discs are essentially equal in production cost. Quotes from several disc manufacturers for 25,000 units of HD DVDs and Blu-rays revealed a price differential of only 5-10 cents. (Lowest price: 90 cents versus 100 cents. Highest price: $1.45 versus $1.50.) Another study performed by Wesley Tech (February 9, 2007) arrived at a similar conclusion. Quotes for 10,000 discs show that a 15 gigabyte HD DVD costs $11,500 total, and 25 gigabyte Blu-ray or a 30 gigabyte HD DVD costs $13,000 total.For larger quantities of 100,000 units, the 30 gigabyte HD DVD was more expensive than the 25 gigabyte Blu-ray ($1.55 versus $1.49) [Wikipedia]

Sources:

Wired

Wikipedia

Technabob
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