so the second command would process all the content on the CD to make an ISO and then show the MD5 value?
winrar opened up the ISO file fine. showed the content inside it.
just need to test burn it.
yes, 2nd file doesnt make ISO file actually. it sends ISO file to stdout which is piped to stdin of md5sum
OR as suggested above, mount the file
mkdir /media/cdrom.iso (or any directory)
mount FILENAME.iso /media/cdrom.iso -o ro,loop
Mount the CDROM
mount /dev/cdrom /media/cdrom
run diff to verify
diff -r /media/cdrom /media/cdrom.iso