whats the difference between a regular DVD and a blu ray disc?

Answer 1

It can be best described on Wikipedia...
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Answer 2

The Blu Ray dvd player uses a Blue laser to read the information from the disc as opposed to a standard DVD player which uses a more common Red Laser. The Blue laser is capable of picking up more info from the disc, hence the reason that Blu Ray discs can hold many times the information of a standard DVD. Toshiba's HD DVD uses the same technology, however the two formats are completely incompatible. A Blu Ray Disc will not play in an HD DVD player, and vice versa.

Answer 3

Yes there is a difference. I own one of the best upconverting Blu Ray players on the market. My LG Super Blu player does a great job upconverting regular DVD's. I have actually tricked some friends into thinking they were watching hi def. Then I put in a Blu Ray or an HD DVD just when they thought the picture couldn't get any better. They are blown away as there is a big difference. The larger your screen is the bigger the difference will be. A 1080p picture on a larger 1080p screen is the best of the best and yes you can tell.

Answer 4

I myself am curious about blu-ray discs. I am doing some research for a school project on blu-ray discs. I do know that the blu-ray holds 50gigs on a double sided disc. It can have 9 hours of High-def video and 23 hours of standard dvd video. The players are expensive but the most inexpensive is integrated into Sony's PS3. Hope it helped!

Answer 5

The main differences are:

- Blue laser means a shorter wavelength, which means more data packed into the same space on a physical disc.

- The recording layer is much closer to the surface of the disc with a Blu Ray than with a traditional DVD. This means that the laser can be more precisely focused on the data, which allows further dense packing of the data on the disc. (This is why Blu Ray discs store 50GB vs. 30GB for HD-dvd, the focus distance)

- Blu Ray (and HD-DVD) support three different video compression schemes - MPEG2 (same as DVD), VC-1 (Microsoft next-generation compression scheme), and MPEG-4 AVC (Sony/Panasonic/Apple joint next-gen compression scheme). All players using the name Blu Ray or HD-DVD must support all three out of the box.

Because of these three changes, Blu Ray is able to store video with approximately 8x the bandwidth requirements of DVD video on the same physically sized disc.

Answer 6

A blueray disc plays movies in a higher resolution (better quality) that can be seen on high definition televisions. You have to have a blueray player to play these discs. They hold much more data than regular dvds (about 10 times as much I think)

Answer 7

Resolution and storage capacity.

Regular DVD's are 720x480 or 480p. Holds about 9GB.

BluRay DVD's are 1920x1080 or 1080p. Holds about 50GB.

Side Note: BluRay DVD's can only be played in BluRay DVD players. They can't be played in HD-DVD or DVD players.