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Thread: Why Does 700mb Means 735mb

  1. #1
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    I Download a lot of movies but these are space consuming for my harddrive.
    I don't have a lot of space left so I want to burn them on a cd because I don't have the money to buy another harddrive.
    Now the following happens. When I look at the properties of the movie it says filesize is 700mb. That's great?!!??! I can put it on a cd?!?!
    Not.....
    When I try to burn it with nero and I put in box for burning. The size on the cd increases ( for example to 735 mb ). This I cannot burn on a single cd.
    Why is this happening.
    I do not want to burn them as a vcd or something. Just as a data CD, in the format it is in originaly, is fine.
    Is there a way around it.

    Thanx

  2. Software & Hardware   -   #2
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    Sorry about the triple post...
    I got an "cannot connect to the server error" so I thought i had to redo it.

  3. Software & Hardware   -   #3
    tilen76's Avatar Poster
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    Well, first you make sure how big the files actually is, because 700 MB is not 700.000 KB.

    1 byte = 8bits

    1 Kb = 1024 bytes

    1 Mb = 1024 Kbytes

    1 Gb = 1024 Mbytes


    So is your file 700 Mb or 700.000 Kb?


    Then about the 80 min CDs. You can put on a 80min CD around:

    736.100.000 bytes ~ 718.800 Kbytes ~ 702 Mbytes

    I hope this helps you.

  4. Software & Hardware   -   #4
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    Thanx. I understand how it works now.
    But now another problem has come up. I tried to find the answer in this forum but I cannot find an answer i can work with.
    When I try to burn one of these movies with Nero I always get the message that the cd isn't big enough and it pops out of the recorder.
    For example I have a film wich is 738.019.328 bytes big.
    So if I want to fit this on a cd that has 738.019.328/1024/1024 = 703,83 MB of space. If i read the information about my empty cd in NERO it says it has 703 mb's of empty space. Just a little of 1 mb short.
    But I always get the message the message and the cd pops out.
    I've enabled overburning to 90 minutes. Try to burn it with:
    -no multisession
    -close disk
    -disk at once
    This on a lite-on ltr-48125w ( which is capable of overburning )
    What goes wrong? Is overburning only possible if the cd is 90 minutes?

  5. Software & Hardware   -   #5
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    You can overburn any CD not the just 90 minute ones. Take out the credits, that should make it small enough to fit on the CD.

  6. Software & Hardware   -   #6
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    There also might be a problem in that a CD needs a certain amount of space for its filing system, TOC or whatever. So you need more than just the space for the files.

  7. Software & Hardware   -   #7
    Supernatural's Avatar Poster
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    You shouldn't overburn in max speed either. Reduce recording speed to 6x or 8x, if possible.

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