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DVD Formats?

Discussion in 'Beginners, General Questions' started by Jeremy Scott, Aug 9, 2003.

  1. Jeremy Scott

    Jeremy Scott Second Unit

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    Can someone explain the difference between the following or suggest a link that explains the differences:

    dvd+r
    dvd-r
    dvd-rw
    dvd+rw
    dvd-ram
    dvd-rom
     
  2. Allan Jayne

    Allan Jayne Cinematographer

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    DVD-R -- (recordable) DVD disk that can be recorded once, that is, after it is recorded (burned) it cannot be erased and re-recorded. There are provisions you choose in advance so that, if you record part of the disk, you can go back and record more.

    DVD-RW -- (rewritable) DVD disk that can be erased and re-recorded over and over again.

    DVD-ROM -- (read only memory) Any DVD can be a DVD-ROM, used as a large data source for a computer.

    DVD-RAM -- (random access memory) Any DVD-RW can be a DVD-RAM, used as a large temporary storage area for a computer.

    Not sure about the plus sign.

    Video hints:
    http://members.aol.com/ajaynejr/video.htm
     
  3. Michael Reuben

    Michael Reuben Studio Mogul

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    With the exception of DVD-ROM, all of these are formats for recordable DVD -- an area in which there is no agreed-upon standard.

    DVD-R and -RW (with a minus sign) are as described above. It is the format supported by Panasonic, among others. But it is not the only format for recordable DVD.

    DVD+R and +RW (with a plus sign) are an alternate format supported by Phillips and other manufacturers. The recorders are different, and so are the media. In theory, all four of these types of discs can be formatted for playback on regular DVD players. In practice, there have been some incompatibilities.

     

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