Re: FC3 ISO Weirdness

From: Kam Leo (kam.leo_at_gmail.com)
Date: 06/13/05

  • Next message: Gerry Doris: "Re: FC3 ISO Weirdness" 
    Date: Sun, 12 Jun 2005 17:44:47 -0800
To: Grand Demon <granddemon@gmail.com>, For users of Fedora Core releases <fedora-list@redhat.com>

    On 6/12/05, Grand Demon <granddemon@gmail.com> wrote:
    > Today I downloaded the four Fedora Core 3 ISO images. I calculated the
    > md5 checksums with the md5sum utility and all four matched up to the
    > expected values.
    >
    > However, when I burned the images in Nero (under Windows) and set it
    > to verify the disks, Disk Two and Disk Three failed. It stated that
    > certain Sectors could not be read. Those same two disks failed under
    > Fedora Core's media test.
    >
    > I also tried to burn the Disk Two image in Toast (under Mac OSX). When
    > that verified the disk, it also failed with 'Sector xxx could not be
    > read' errors. I went through with the install anyway. Disk one's files
    > worked fine (as expected), but Disk Two failed out on one file. When I
    > tried the second Disk Two disk (the one I burned under Mac OSX) did
    > work, however. I didn't have many files coming off Disk Three, so it
    > didn't fail. Disk Four also went fine.
    >
    > What I am wondering is two things. 1) Why would the verification and
    > burning of the disks fail under two different OSes and burning
    > programs despite the md5 checksum being correct? 2) Why would the Mac
    > OSX-burned disk be corrupted in different areas than the
    > Windows-burned disk?
    >
    > I have not tried to burn/verify Disk Two and Three under Linux because
    > I don't want to "waste" another CD-R. I assume it will generate
    > similar results. Any insight on what occurred here would be great. The
    > install was successful so that isn't the problem... I am just curious
    > as to what caused these anomalies...
    >
    > --
    > Grand Demon
    >

    Media as well as burners are not created equal. Your burner may not
    have a burning algorithm that exactly matches this particular
    manufacturer. Although the media may be listed as 48X or higher you
    may need to use a much lower speed in order to get satisfactory
    results. Try setting the burn speed to 10X or 12X. If you bought
    really cheap or no-name brand media you may need to go even lower. 

    -- 
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  • Next message: Gerry Doris: "Re: FC3 ISO Weirdness"

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