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What's the difference between Blu-ray and DVD? Curious..

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Although they are about the same shape and size, that's about as far as anyone can go with the similarities between the two. I found a list of differences online and will put it below.

- Blu-ray disks are read using blu lasers rather than red lasers. This is one of the main reasons they are completely unreadable by a normal DVD player.

- Blu-ray discs can hold up to 25GB (single-layer) or 50GB (dual-layer). Discs on sale today are a mix of 25 & 50GB discs, its difficult to tell from the packaging which is which, but both types work in all players, so its somewhat irrelevant to the consumer.

- Blu-ray movies can be encoded in MPEG-2 (like DVD) or newer compression systems like MPEG-4 "AVC", or Windows Media "VC-1" format. Each has their pros & cons, but the newer codecs generally compress data more efficiently.

The rest is in the comments (stupid answer limit).

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- Blu-ray movies support additional audio formats including Dolby Digital (same as DVD), DTS (same as DVD), Dolby Digital Plus, DTS-HD, DTS-Master Audio, as well as uncompressed PCM encoded audio tracks. Most of these formats support higher bit-rates and sizes than traditional DVD (so basically, they sound better).

- Blu-ray movies have additional layers of copy protection compared to DVD, so theoretically the "DeCSS" fiasco which made all DVDs easily pirated does not / will not exist on Blu ray.

The rest is in the comments (stupid answer limit).

- Blu ray packages are smaller and thinner than DVD cases and are translucent blue on the top and bottom, in an effort to avoid consumers buying the wrong discs.

- Blu ray players range from $1500 for a Pioneer top-of-the-line player, to the $499 20GB Playstation 3. Any player in that range can play any available disc, and the quality of playback is very good even on the cheapest PS3 model.

- All blu ray players sold today can also playback DVDs. Most up-scale the DVDs to appear as good as they can on an HDTV.

- Blu ray discs are nearly always stored on disc at a resolution of 1920x1080 pixels. They are usually stored (for films) at a rate of 24 frames per second (same as film projection). Some video content is stored at 60 frames per second. DVDs are stored at around 720x540 pixels.

- Blu ray discs support more interactive content than DVDs such as Java applications, menus that can pop up on top of the screen as a film runs, and so on.

- Blu ray discs have a special anti-scratch protective coating so they are less likely to get scratched, especially when you rent them or use Netflix.

I hope that this list helped you (at least a little bit)!
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Blu-Ray has better quality

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I think blu-ray reads the disc with a laser. Plus, some "burned" or copied movies don't work.

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They are both DVD's Blu-ray better picture very clear. Big difference but cost more when you rent them.

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Another format where they can release their catalogs so you rebuy samethimg you already have
So they can increase their profits
Expect different better format soon
But buy buy!!

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Blu-ray: Image quality, Superior resolution is a big part of what makes Blu-ray look great.
Blu-ray: 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.
Blu-ray: 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 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.

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It seems like blurays are significantly harder to damage. That and they can read and write at a higher level of quality, basically high definition. I don't think I've ever seen someone snap a bluray disk.

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Blue ray is king broo

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