| Extension | .dvd |
| Category | documents |
| Description | The DVD (Digital Versatile Disc) format is one of the main standards for digital video and audio storage. A DVD is an optical disc that can contain various types of data, including videos, audio recordings, software, computer application data, and more. A DVD can contain a large amount of data, typically ranging from 4.7 to 17 gigabytes, depending on the disc type and format. This provides the ability to record long-running high-definition movies, TV episodes, audio albums and other multimedia content.
There are several varieties of DVDs, including DVD-ROM (read-only), DVD-R (write once), DVD-RW (rewritable), DVD+R, and DVD+RW. Each of them has its own characteristics and applications.
DVD supports various video (eg MPEG-2) and audio formats (eg Dolby Digital, DTS), allowing you to record high-quality content with support for multi-channel audio and a wide color range.
A DVD may contain interactive menus, extras, subtitles, alternate language tracks and other elements to enhance the user experience and provide a variety of viewing options. Some DVDs may be copy protected using various copyright protection technologies such as CSS (Content Scramble System) or DRM (Digital Rights Management). DVD provides high compatibility with a wide range of playback devices, including DVD players, computers, laptops, game consoles and other multimedia devices.
DVD is used to store and distribute movies, music, video games, software, educational materials, presentations and other multimedia content.
The DVD format remains one of the most common and versatile ways to distribute multimedia content, providing high storage capacity, compatibility and the ability to create interactive experiences for users. |
| Technical details | Technical characteristics of the DVD file format include the following features:
1. Physical parameters:
- Disc diameter: 120 mm.
- Thickness: usually 1.2 mm.
- Storage capacity: from 4.7 to 17 gigabytes, depending on the type of disk.
2. Disc types:
- DVD-ROM (read-only): Used to store read-only data such as software or videos.
- DVD-R (Recordable): recordable discs.
- DVD-RW (ReWritable): Rewritable discs that can be rewritten multiple times.
- DVD+R and DVD+RW: alternative recordable and rewritable disc formats that compete with DVD-R and DVD-RW.
3. Video and audio formats:
- Video: The main video format on DVD is MPEG-2 (Moving Picture Experts Group - 2), which provides high quality video compression.
- Audio: Various audio formats are supported, including Dolby Digital (AC-3), DTS (Digital Theater Systems), MPEG Audio and PCM (Pulse-Code Modulation).
4. Video resolution:
- Standard resolution: 720x480 pixels (NTSC) or 720x576 pixels (PAL).
- High Definition (HD): Some DVDs may contain High Definition (HD) video with a resolution of 1280x720 pixels or 1920x1080 pixels.
5. Interactive features:
- The DVD may contain interactive menus, extras, subtitles, alternate language tracks and other interactive elements to enhance the user experience.
6.Copy protection:
- Some DVDs may be copy protected using copyright protection technologies such as CSS (Content Scramble System) or DRM (Digital Rights Management).
7. Compatibility:
- DVD provides compatibility with a wide range of playback devices, including DVD players, computers, laptops, game consoles and other multimedia devices.
8. Application:
- DVD is used to store and distribute various types of multimedia content, including movies, music, video games, software, educational materials and presentations.
The technical characteristics of the DVD format make it a universal and widespread way to store and distribute multimedia content, providing high quality video and audio, compatibility with various devices and the ability to create interactive experiences for users. |
