|
Format |
Description |
Markets/
Applications |
Capacity |
Availability |
|
DVD-ROM |
A read-only disc that can hold 4.7GB-17GB of data. One DVD is the equivalent of more than six CDs. Many experts believe that
DVD-ROMs will eventually replace CD-ROMs, as well as VHS videocassettes and laser discs. Standard agreed upon by the DVD Forum. |
Gaming
Education
Entertainment
Reference
Data retrieval
Software
Distribution |
4.7GB
8.5GB
9.4GB
17GB |
Hardware and Titles Available Now (From many companies) |
|
DVD-R |
A write-once DVD technology. Provides sequential write, similar to CD-R. No overwrite capability. Standard agreed upon by the DVD Forum. |
Premastering |
3.95 GB single sided disc; 7.9 GB double sided disc. |
Hardware: Now. (Mainly From Pioneer)
Media: Single Sided Available Now |
|
DVD-RAM |
A type of rewriteable disc that provides much greater data storage than today's CD-RW systems. Provides random access storage, so it can be used for a number of consumer and business applications. Recommended for overwriting up to 100,000 times. Standard agreed upon by the DVD Forum. |
Storage
Backup
Archive
Internet
Video
Applications |
2.6 GB single sided; 5.2 GB double sided
End 1999: Future capacities: 4.7 GB single sided; 9.4 GB double sided |
Now. (Toshiba, Hitachi and Panasonic shipping)
Media: Available Now |
|
DVD-RW |
A DVD format with limited rewriteability. Differs from DVD-RAM in that it is a sequential storage medium, making it suitable for DVD mastering and authoring rather than for widespread use by consumers/ businesses. Uses DVD-R media. Recommended overwrite up to 1,000 times. Standard agreed upon by the DVD Forum. |
DVD Title Authoring and Mastering
|
3.95 GB single sided disc; 7.9 GB double sided disc. |
Hardware Available Now (Mainly from Pioneer)
Media: Single Sided Available Now |
|
+RW |
A competing standard to DVD-RAM developed by Hewlett-Packard, Philips and Sony. Specifications, applications and availability are largely unknown. |
Unknown |
3 GB single sided; 6GB double sided |
Some vendors say Fall 1999. Others have not been willing to give availability dates. |
|
DVD-Video |
A DVD-based format designed specifically for playing full length digital movies, using dedicated set-top players. Standard agreed upon by the DVD Forum. |
Movie Viewing |
Same as DVD-ROM |
Hardware and Movie Titles Widely Available Now |
