Downloading and burning the DVD ISO of the SLED media from SUSE's site is
probably the easiest way. I'm not ever quite sure how to make a bunch of
files from a filesystem get onto a DVD and still be bootable, since CD
booting and hard drive booting never quite work the same way for me. As a
result,

Perhaps as a compromise get a USB stick that is big enough, burn the SLED
media to it from SUSE, and then look for any special drivers from your
hard drive and put them on there too just in case you need them when
restoring.

Just a guess....

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Good luck.

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