hmmmmm..... this doesn't look good!

     bmike1@Michael-Notebook:/mnt/dvdrw$ sudo md5sum -c md5sum.txt|grep
-v
     'OK$'md5sum: ./casper/filesystem.squashfs: Input/output error
     ./casper/filesystem.squashfs: FAILED open or read
     md5sum: WARNING: 1 of 27 listed files could not be read
     bmike1@Michael-Notebook:/mnt/dvdrw$

Lets look at the other d/l I did: it seems that burn is good:

bmike1@Michael-Notebook:/mnt/dvdrw$ sudo mount /dev/dvdrw /mnt/dvdrw
mount: block device /dev/sr0 is write-protected, mounting read-only
mount: /dev/sr0 already mounted or /mnt/dvdrw busy
mount: according to mtab, /dev/sr0 is already mounted on /mnt/dvdrw
bmike1@Michael-Notebook:/mnt/dvdrw$ sudo md5sum -c md5sum.txt|grep -v 'OK$'
bmike1@Michael-Notebook:/mnt/dvdrw$
-- 
:-)~MIKE~(-: