Newbie Install Question - downloading and burning the install CDs, p2p

[Tab Gilbert]

> so i guess the direction is do (try) the method above against the disk
> and then try a "traditional" burn.

gives me-

tab at ubuntutab:~ $ md5sum -c /media/cdrom0/md5sum.txt
md5sum: can't open ./dists/hoary/main/debian-installer/binary-i386/Packages
md5sum: can't open ./dists/hoary/main/debian-installer/binary-i386/Packages.gz
...
md5sum: no files checked