Ask your friend.
>-----Original Message-----
>A friend lent me a regular 700 MB CD-R which actually
contains 4 Gigs of
>data,
>with a completely transparent compression scheme. (not
zipped...etc..)
>
>I've cloned it using my regular 24x yamaha CD-R burner.
>
>I DONT want to argue about wether its possible or not and
so on.
>I'm a network administrator and i know what i'm talking
about.
>The CD is RIGHT HERE on my desk and theres NO MISTAKE,
>when i select all data on it and copy it to any hard
drive, it does fill 4
>gigabytes.
>
>On the CDproperties image that i've attached you can see
that Windows sees
>the CD as 680Mb,
>unknown file system. (instead of CDFS file system)
>
>On the CDfiles image that i've attached you can see the
contents of the
>root of this CD in Windows Explorer.
>(nothing unusual)
>
>Finally on the CDcontents image you can see that i've
dragged around all the
>files that were in the CDfiles snapshot and hit
properties.
>Now this is interesting: 4Gigabytes of data fit on a
regular CD-R!
>
>Questions:
>how was this special CD done?
>was it done with special software or hardware?
>what file system could it be?
>how can i achieve this myself in order to backup the
large files used by
>employees on the network i'm taking care of?
>
>Thank you.
>
>
>
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