New Norton on CD or DVD?

My subscription to Norton 360 has less than a month before it expires.
My DSL subscription does NOT have unlimited bandwidth.
I'm not sure how many megabytes a download of a new Norton version might take, but I have 3 computers, each needing virus protection.
Is there a way to download all the needed files onto a thumb drive, a CD, or DVD so I don't have to download a massive update to each of my three computers?
It didn't quite bankrupt me when I had a new computer which kept cra$hing and I needed three downloads just for it.   But, it did put a dent in my internet usage for during the rest of that month.
Thanks in advance.