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The main features of DVD include:
- Over 2 hours of high-quality digital video (over 8 on a
double-sided, dual-layer disc).
- Support for widescreen movies on standard or widescreen TVs
(4:3 and 16:9 aspect ratios).
- Up to 8 tracks of digital audio (for multiple languages),
each with as many as 8 channels.
- Up to 32 subtitle/karaoke tracks.
- Automatic seamless branching of video (for multiple
story lines or ratings on one disc).
- Up to 9 camera angles (different viewpoints can be selected
during playback).
- Menus and simple interactive features (for games, quizzes,
etc.).
- Multilingual identifying text for title name, album name,
song name, cast, crew, etc.
- Instant rewind and fast forward, including search to
title, chapter, track, and timecode.
- Durability (no wear from playing, only from physical damage).
- Not susceptible to magnetic fields. Resistant to heat.
- Compact size (easy to handle and store, players can be
portable, replication is cheaper).
Note: Most discs do not contain all features (multiple audio/subtitle tracks, seamless branching, parental control, etc.).
Some discs may not allow searching or skipping.
Most players support a standard set of features:
- Language choice (for automatic selection of video scenes, audio tracks, subtitle
tracks, and
menus) which must be supported by additional content on the disc. Some
players include additional features:
- Special effects playback: freeze, step, slow, fast, and scan (no
reverse play or reverse step).
- Parental lock (for denying playback of discs or scenes with
objectionable material) which again must be supported by additional content on the disc.
Some players include additional features
- Programmability (playback of selected sections in a desired
sequence).
- Random play and repeat play.
- Digital audio output (PCM stereo and Dolby-Digital).
- Compatibility with audio CDs.
- Component (YUV or RGB) output for highest-quality picture.
- Compatibility with Video CDs.
- Six-channel analog output from internal audio decoder.
- Compatibility with laserdiscs and CDVs.
- Reverse single frame stepping.
- RF output (for TVs with no direct video input).
- Multilingual on-screen display.
Next: Quality of DVD-Video
Up: DVD
Previous: DVD
Dave Marshall
10/4/2001