DVD-RAM (DVD–Random Access Memory) is a disc specification which specifies rewritable DVD-RAM media and the appropriate DVD writers.
Currently there are three competing technologies for rewritable DVDs: DVD-RAM, DVD+RW and DVD-RW. DVD-RAM is considered a highly reliable format, as the discs have built-in error control and a defect management system. Therefore, DVD-RAM is perceived to be better than the other DVD technologies for traditional computer usage tasks such as general data storage, backup and archival, though the Mt. Rainier standard for DVD+RW somewhat lessens the DVD-RAM format's perceived advantage. Curiously, DVD-RAM has a larger presence in camcorders and set-top boxes than in computers, although the DVD-RAM's popularity in these devices can be explained by the fact that it is very easily written to and erased, which for example allows extensive in-camera editing.
The on-disc structure of DVD-RAMs is closely related to hard disk and floppy disk technology, as it stores data in concentric tracks. DVD-RAMs can be accessed just like a hard or floppy disk and usually without any special software. DVD-RWs and DVD+RWs, on the other hand, store data in one long spiral track and require special packet reading/writing software to read and write data discs. It is a common misconception that DVD-RAM uses magneto-optical (MO) technologies, since both DVD-RAM and MO have numerous rectangles on the disc surface. However, DVD-RAM is a pure phase change medium, similar to CD-RW or DVD-RW.
2007-10-17 01:13:38
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answer #1
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answered by jay 3
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A DVD-RAM is a type of DVD. It can be rewritten about 100,000 times. Unlike DVD-RW and DVD+RW which write (1,000 write limit) the data in a single long spiral (like a old 45 rpm record), the data is written in cylinders such as on a floppy disk. The writes tend to take longer with DVD-RAM and the disks are more expensive. Their big advantage is that files anywhere on the DVD may be deleted and the space reused. With DVD-RW and DVD+RW space can only be reused if everything after it is deleted.
2007-10-17 01:05:28
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answer #2
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answered by Thinker 7
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The very long DVD discs are 2 layer and the burner has to have the potential to try this. some are and the classes could be in place as nicely. i could fairly placed the action picture on 2 discs or take areas of the DVD classes out. occasion, in case you do no longer desire different languages then get rid of those you do no longer desire. in case you purely desire to make certain the action picture and not care aboutthe different bits extra tomany DVDs then get rid of what you haven't any longer any real use for. This in all danger provides you sufficient room on one disc. I try this usually with DVDs maximum of them i do no longer desire any languages different than English so I get rid of the others. some DVDs have commercials for different video clips so i'm getting rid of them as nicely. After that if it won't in high quality condition then I the two use 2 discs or get rid of alternative products i do no longer desire you in addition to mght can placed the greater products on a disc of its own and the action picture on yet another. have exciting.
2016-12-18 09:48:20
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answer #3
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answered by Anonymous
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It allows you to read the DVD and write to it.
2007-10-17 01:01:25
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answer #4
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answered by nora22000 7
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