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DVD-RW question

SpectorSpector
edited November 2007 in Chit chat
I've made up a DVD-RW disc with various old VCR clips, but when I come to copy it onto my PC's hard drive as backup, it comes up with a message after a minute or so:
"Cannot Copy VTS_01_1: Invalid MS-DOS function."

What that means is that I can't make a backup of this disc, which effectively makes it useless, because when it stops working in five years or so, that's it.
What the hell has MS_DOS got to do with it anyway, and is there any way around this problem?

I hate DVDs, I really do.
Post edited by Spector on
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Comments

  • ADJBADJB
    edited November 2007
    Have you finalised the disc write ?. Not doing so would give that sort of error.
  • The StargliderThe Starglider
    edited November 2007
    I think what you're trying to do is burn the compilation with a certain amount of backwards compatibilty to previous operating systems in effect, and the file violates that compatibility.

    Check your build settings to make sure that joliet is enabled and the other various options that I can't be arsed to go and check right now ;)
  • psj3809psj3809
    edited November 2007
    Unsure what the problem is but if you cant make a copy of it then try another method. I had an old disc i had made with video clips, couldnt do a straight copy but instead had to 'rip' it to create an iso then burn it that way.

    Download DVD Shrink and open up your disc and save it as an ISO. If that works then you are fine as you can then obviously copy it the normal way by burning an ISO but try that method first.
  • PilsenerPilsener
    edited November 2007
    Spector wrote: »
    I've made up a DVD-RW disc with various old VCR clips, but when I come to copy it onto my PC's hard drive as backup, it comes up with a message after a minute or so:
    "Cannot Copy VTS_01_1: Invalid MS-DOS function."

    What that means is that I can't make a backup of this disc, which effectively makes it useless, because when it stops working in five years or so, that's it.
    What the hell has MS_DOS got to do with it anyway, and is there any way around this problem?

    All disk-operations in Windows has MS-DOS as the active element. File-copying in windows (cut/copy and paste) is done by executing underlaying MS-DOS commands.

    Your disc is a DVD video disc, so try copy it using DVD-Shrink. It's a free program. You can find it at http://www.doom9.org/ and many places elsewhere. DVD-Shrink can also copy copy-protected DVD's, and it shrinks the contents of the original disc, if needed, so it will fit on a DVD-R/RW disc.
  • gasmangasman
    edited November 2007
    Pilsener wrote: »
    All disk-operations in Windows has MS-DOS as the active element. File-copying in windows (cut/copy and paste) is done by executing underlaying MS-DOS commands.

    Nope, not by a long way. That might have been sort-of true in the days of Windows 3.1 (or 95/98 at a pinch) if you stretch the definition of 'MS-DOS command' far enough, but certainly as of Windows 2000/NT there's no component of the system that can be described as MS-DOS.
  • SpectorSpector
    edited November 2007
    I think the disc is buggered- there's one part of it that just won't copy, so it looks like I've been raped by sony again. Do these disc cleaner things work, or am I wasting my time with them?
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  • PilsenerPilsener
    edited November 2007
    Windows is still using 8.3 filenames in "the bottom". If you get a corrupted filename, then you can rename it using DIR /X to find the file's 8.3 name, and hence rename it. So it still has some of ye olde MS-DOS in it.
  • Scottie_ukScottie_uk
    edited November 2007
    Pilsener wrote: »
    Windows is still using 8.3 filenames in "the bottom". If you get a corrupted filename, then you can rename it using DIR /X to find the file's 8.3 name, and hence rename it. So it still has some of ye olde MS-DOS in it.

    Not quite, When you name a file both the long name and a truncated 8.3 versions are saved. Each file is stored on disk (hardrive, floppy, Flash Drives) utilising the old 8.3 name and the larger name in its directories.

    This has nothing to do with DOS, it's about disk Formats. Done so so that the disk is able to be read by systems that do not understand or impliment large file names (i.e. Legacy systems).

    I know this is true of FAT12, FAT16 and FAT32 disk formats. I'm not sure about others though (such as NTFS).
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