F11 dvd media errors

[Dave Close]

I see a problem which may be identical to the original report, but the
solution discovered does not fit.

Fedora-11-i386-DVD.iso has precisely the correct checksum after download.
Burn to DVD, boot, fails media test. Reboot to old system and run this:

# dd if=/dev/cdrom | sha256sum
6e812e782e52b536c0307bb26b3c244e1c42b644235f5a4b242786b1ef375358  -
7194980+0 records in
7194980+0 records out
3683829760 bytes (3.7 GB) copied, 508.484 s, 7.2 MB/s

Also the correct checksum and precisely the correct size. All this done
using the same drive. New ideas?
-- 
         Dave Close, Compata, Irvine CA       +1 714 434 7359
       dave at compata.com              dhclose at alumni.caltech.edu
         "I don't need bodyguards." -- Jimmy Hoffa, June 1975