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dvd+r media 2hr vs 4 hr

Discussion in 'DVD±R media' started by tbrown92, Oct 6, 2002.

  1. tbrown92

    tbrown92 Guest

    What is the difference in these(othere then time)? Does the 4 hr allow for longer movies? How does that effect with size of file?
  2. A_Klingon

    A_Klingon Moderator Staff Member

    Dec 29, 2001
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    The discs ALL have exactly the same storage capacity. There are no "2hour" or "4hour" types.

    How much recording time you get from a disc depends on how much you compress the video. Generally, I think you get 2 hours of "normal" <dvd mpeg2> type video with no additional compression.

    The back case of a Verbatim DVD+RW disc puts it thusly:

    " 60 Mins @ 9.7 Mbits/s
    120 Mins @ 5.1 Mbits/s
    180 Mins @ 3.4 Mbits/s
    240 Mins @ 2.5 Mbits/s

    "DVD video recording time is dependent on MPEG2 compression ratio."

    I bet *any* of the above-mentioned compression ratios would look superb on any regular TV set.

    -- Mike --

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