What do dvds look like

Blu Ray resolution, Blu-Ray easily wins this battle, too. A DVD is a standard definition device. So if you are looking for a quality picture, Blue Ray is the clear winner.

The difference is that the DVD laser is a red laser that works at a nm wavelength. The Blu-Ray laser is — you guessed it — blue and works on shorter nm wavelengths, meaning they can read information more closely and precisely.

This is what enables the Blu-Ray disc to store so much more information. Blu-ray discs are also more scratch-resistant than DVDs. List of Partners vendors. Robert Silva. Robert Silva has extensive experience in consumer electronics and home theater product sales and sales supervision; he has written about audio, video, and home theater topics since Robert has articles published on HBO. Facebook Twitter LinkedIn. Updated on October 29, Tweet Share Email.

In This Article. The Evolution of DVDs. Introduction of DVD Upscaling. DVD Upscaling vs. Most newer TVs don't have S-video inputs. Was this page helpful? Thanks for letting us know! Email Address Sign up There was an error. Please try again. You're in! Thanks for signing up. There was an error.

Tell us why! More from Lifewire. You will often read about "pits" on a DVD instead of bumps. They appear as pits on the aluminum side, but on the side that the laser reads from, they are bumps.

The microscopic dimensions of the bumps make the spiral track on a DVD extremely long. If you could lift the data track off a single layer of a DVD, and stretch it out into a straight line, it would be almost 7. That means that a double-sided, double-layer DVD would have 30 miles 48 km of data! Sign up for our Newsletter! Mobile Newsletter banner close. Mobile Newsletter chat close. Mobile Newsletter chat dots. Mobile Newsletter chat avatar. Mobile Newsletter chat subscribe.

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