On Tue, 3 Mar 2009, Rick Stevens wrote:
> The x86_64 DVDs are bigger (fuller). CDs and DVDs work like old
> vinyl records (a long, spiral "track"), but they read backwards
> (from the hub out to the outer edge). Consequently, the end of
> session mark on a 64-bit DVD will be closer to the rim of the disk.
> It may be that the DVDs are spinning fast enough that the flutter
> present at the outer edge of all CDs and DVDs when they're spun fast
> is hosing the drive's ability to see the end of session mark. This
> is more prevalent on DVDs as the data density is greater than on
> CDs.
but it's the "fuller" 64-bit DVDs that are the readable ones -- your
logic is backwards.
rday
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Robert P. J. Day
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Have classroom, will lecture.
http://crashcourse.ca Waterloo, Ontario, CANADA
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