It is now widely accepted that the widescreen format is the better of the two. ... Widescreen uses an aspect ratio of 16:9 while full screen uses an aspect ratio of 4:3. 2. Widescreen is better for viewing movies than full screen.
DVDs are often available in two screening formats: widescreen and full screen. Widescreen is the original format viewed on the big screen while full screen is the modified version of a movie to fit an old TV screen.
What Formats Do DVD Players Use
| What formats do DVD players use? | |
|---|---|
| category | Formats |
| Common DVD player format | MPEG-2 (Also called H.222 or H.262) |
| More DVD Player formats | MPEG-1 (Video CDs, or VCDs) DivX DVD+R or DVD-R MOV, WMV, WMA, JPEG, etc. |
| Latest DVD formats | MPEG-4 (Also called H.264 or Blu-ray) |
Even without the resolution increase, which is significant, the compression quality on Blu-Ray is much better. DVDs have much lower storage capacity and use less developed codecs, resulting in many more compression artifacts.
Widescreen movies are better at this by nature because they allow the picture to fill nearly your entire field of vision. This is why films have been shot this way -- to draw you in and make you feel like you're part of the action. Most widescreen movies are shot in what is called 2.40 (21.5:9) aspect ratio.
Most widescreen DVDs on the market will not fill the entire screen on your TV because they have been recorded in an aspect ratio that is different from your TV's. There are three common movie aspect ratios: 1.33:1, 1.78:1, 2.35:1. ... Your TV may be able to stretch the image to make it fill the entire screen.
An anamorphic widescreen feature will open in a wide window. A "letterboxed" feature will open in a normal aspect window. If you have a widescreen television, a "letterboxed" video will have black bars on each side.
To change the display format:
Use the aspect ratio button on your TV's remote to adjust the size of the image. Pan-and-scan fans can use it to fill the entire screen with an image, while widescreen fans can keep it on the normal setting to preserve the film the way it was shot.
To record digital video, DVD-Video uses either H. 262/MPEG-2 Part 2 compression at up to 9.8 Mbit/s (9,800 kbit/s) or MPEG-1 Part 2 compression at up to 1.856 Mbit/s (1,856 kbit/s). DVD-Video supports video with a bit depth of 8 bits per color YCbCr with 4:2:0 chroma subsampling.
ConvertingEdit
files directly. To be able to watch such videos on the TV, you must first convert them to a format that the DVD player can understand. This format is MPEG-2. MPEG-1 is also readable by DVD Players, but they have much lower quality.
Most DVDs store movies in the standard MPEG-2 format (aka H. 262) defined by the Motion Pictures Expert Group, though MPEG-1 is also supported. The video is held in VOB (Video Object) files. The video is interlaced for display on ordinary TV sets.
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