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What‘s DVD Format

About DVD

DVD whose full name is “Digital Versatile Disc” is a disk storage format jointly developed by Sony, Toshiba, Philips and Panasonic. It is designed to be used for storing large video/audio data as well as playing standard movies or videos. The DVDs are much the same as CDs both of which are in the same dimension of about 120mm. Basically speaking, the most common DVDs are single-sided with one-layered, which can hold seven times storage as that of VCDs due to the high storing intensity.

DVD Formats

There are quite a few different DVD formats including DVD+R, DVD+RW, DVD-RAM, DVD-R, DVD-RW, DVD-ROM, DVD-Video, etc. The reason for this is that different manufacturers will adhere to different standard, which result in different formats correspondingly.

1.DVD+R & DVD+RW: Philips, Sony, Hewlett-Packard, Dell, Ricoh, Yamaha and other manufacturers support these two formats. DVD+RW is similar to the CD-RW which is re-recordable, that is to say, it allows erasing the data on the DVD+RW disc without any damages. DVD+R, on the other hand, is the variant of DVD+RW. It is a recordable DVD format but it supports one-time data record only. It has got very good compatibility and can be workable with nearly 89% of the DVD Players.
2. DVD-R, DVD-RW and DVD-RAM: Panasonic, Toshiba, Apple Computer, Hitachi, NEC, Pioneer, Samsung and Sharp support these formats natively. Like CD-R and DVD+R, DVD-R supports data record for one time only, after the recording, the data will be on the disk forever. DVD-RW allows the data to be deleted and recorded for as many times as possible without doing harm to the medium. As to DVD-RAM, it also allows the data erasion and repeatedly recording but it is only compatible with specific devices which accept DVD-RAM format.
3.DVD-ROM: DVD-ROM is more or less the same as CDs. It is a readable but non-writable format. It allows data or content to be burned once and it can be played on DVD-ROM-equipped devices directly.
4.DVD-Video: It is specially designed for storing digital video data and is widely used in electronic consumers marketplace.

DVD Capacity:

Overall, there are four types of DVD capacity: DVD.-5, DVD-9, DVD-10 and DVD-18.

1. DVD-5 is the most common DVD media and it is supported by DVD+R/DVD+RW and DVD-R/DVD-RW with capability of storing about 4 700 000 000 bytes.
2. DVD-9 which is known as Single Sided Dual Layered is accepted by DVD+R. It can hold the data up to 8 540 000 000 bytes(7.95 GiB).
3. DVD-10, the Double Sided Single Layered has got bigger capacity than that of DVD-9 since it can hold around 9 400 000 000 bytes(8.75 GiB).
4. DVD-18 is supported by DVD+R. It has the strongest capability of holding 17 080 000 000 bytes(15.9 GiB).

DVD Region Codes:

To protect the intellectual property, there are six different DVD region codes which give the film distributors control over the films such as the content, release date, and price, etc.

1. Region Codes “1”: United States, Canada, Bermuda, U.S. territories
2. Region Codes “2”: Europe (except Russia, Ukraine, and Belarus), Middle East, Egypt, Japan, South Africa, Swaziland, Lesotho, Greenland, French Overseas departments and territories
3.Region Codes “3”: Southeast Asia, South Korea, Taiwan, Hong Kong, Macau
4. Region Codes “4”: South America, Central America, Caribbean, Mexico, New Zealand, Australia, Papua New Guinea and much of Oceania
5. Region Codes “5”: Bangladesh, India, Nepal, Afghanistan, Sri Lanka, Ukraine, Belarus, Russia, Pakistan, Africa (except Egypt, South Africa, Swaziland, and Lesotho), Central and South Asia, Mongolia, North Korea
6. Region Codes “6”: China Mainland
7. Region Codes “7”: Reserved for future use, MPAA-related DVDs and “media copies” of pre-releases in Asia
8. Region Codes “8”: Region ALL discs have all eight flags set, allowing the disc to be played in any location, on any player.

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