Sunday, August 29, 2010

Blu-ray vs. DVD

 

Blu-ray vs. DVD

Blu-ray is fairly similar to DVD. The players look the same, the discs look the same, and even the disc menus are similar. So why pay more?

Blu-ray brings three major improvements over DVD: better image quality, better sound quality, and more special features. All three are made possible by the larger storage capacity of Blu-ray, which is capable of storing 50GB of information on a single Blu-ray Disc, compared with DVDs, which can hold about 8GB.
What's better about Blu-ray? Image quality: Superior resolution is a big part of what makes Blu-ray look great. In layman's terms, this means you'll see a more detailed image: more clearly defined strands of hair, wrinkles in clothing, etc. The technical difference is that Blu-ray's maximum resolution is 1,920x1,080 progressive scan, while DVD is limited to 720x480 (480p). Beyond resolution, Blu-ray also uses better video-compression methods, resulting in more contrast and richer colors. If you like the way HD from your cable or satellite provider looks, Blu-ray looks even better. It's the highest-quality video format available today, and in some ways it surpasses the picture quality of your local movie theater, especially when shown on a good-performing HDTV or projector.
Audio quality: Audio quality is also improved. New high-resolution soundtrack formats, such as Dolby TrueHD and DTS-HD Master Audio, are essentially identical to the studio master, so you'll be hearing things exactly as the director and audio engineers intended.
Special features: Blu-ray also has additional special features over DVD. The most basic innovation is the pop-up menu, which allows you to access the menu functions while the movie continues playing. Other innovations include picture-in-picture video commentary and the ability to download new content right from your Blu-ray player, although your player needs to have the right Blu-ray profile to access these features. In our opinion, the special features on Blu-ray have mostly been underwhelming and aren't a good reason to upgrade.
What's worse about Blu-ray? Cost: Blu-ray's main drawback is cost. Prices for players are still generally over RM700 and movies cost about RM150. While the one-time cost of a player isn't that bad, the cost of building up a new Blu-ray library really adds up. At least it's possible to pick and choose which movies you "buy Blu," since every Blu-ray player can also play standard DVDs.
Available titles: Another downside is that the number of titles on Blu-ray is still much smaller than DVD.
Load times: When Blu-ray first came out, load times were unbearable; it could take more than 3 minutes to load a movie. Since then, players have gotten much faster, but they still don't compare with the speed of loading a DVD. While simple Blu-ray movies can load in about 20 seconds on a good Blu-ray player, movies with complex menus still take close to a minute and a half to get to the actual movie, regardless of the player.

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