Capacities
- See also: DVD#Capacity
Most DVD±R/RWs are advertised as having a capacity of 4.7 GB. However these DVDs seem to hold less than the stated 4.7GB because many manufacturers quote the capacity of a DVD using decimal prefixes instead of the binary prefixes often used by software. This can be confusing for many users. While a 4.7 GB DVD can store 4.7 billion bytes: 4,700,000,000 bytes ÷ 1000 B/kB = 4,700,000 kB ÷ 1000 kB/MB = 4,700 MB ÷ 1000 MB/GB = 4.7 GB, using binary prefixes the same capacity is roughly 4.38 GiB: 4,700,000,000 bytes ÷ 1024 B/KiB = 4,589,844 KiB ÷ 1024 KiB/MiB = 4,482.27 MiB ÷ 1024 MiB/GiB = 4.38 GiB.
| Format | Decimal Prefix | Binary Prefix |
|---|---|---|
| DVD±R | 4.70GB | 4.38GiB |
| DVD±RW | 4.70GB | 4.38GiB |
| DVD±R DL | 8.55GB | 7.96GiB |
| DVD-RAM | 4.70GB | 4.27GiB |
| DVD-RAM DL | 9.4GB | 8.75GiB |
| MiniDVD | 1.46GB | 1.36GiB |
| MiniDVD DL | 2.66GB | 2.48GiB |
Read more about this topic: DVD Recordable
Famous quotes containing the word capacities:
“If the children and youth of a nation are afforded opportunity to develop their capacities to the fullest, if they are given the knowledge to understand the world and the wisdom to change it, then the prospects for the future are bright. In contrast, a society which neglects its children, however well it may function in other respects, risks eventual disorganization and demise.”
—Urie Bronfenbrenner (b. 1917)
“All who strive to live for something beyond mere selfish aims find their capacities for doing good very inadequate to their aspirations. They do so much less than they want to do, and so much less than they, at the outset, expected to do, that their lives, viewed retrospectively, inevitably look like failure.”
—Lydia M. Child (1802–1880)
“The menu was stewed liver and rice, fricassee of bones, and shredded dog biscuit. The dinner was greatly appreciated; the guests ate until they could eat no more, and Elisha Dyer’s dachshund so overtaxed its capacities that it fell unconscious by its plate and had to be carried home.”
—For the State of Rhode Island, U.S. public relief program (1935-1943)