As Prachand indicted now there is no such cd is present.An idea is present you can vote for it.
Anyway in a bootable USB drive you can keep NSS tool. Which will help you to scan after booting fron that drive .
For this
Download NSS tool from
ftp://ftp.symantec.com/misc/tools/nss/
How to run the Norton Security
Scan on a machine with limited or no internet connectivity.
1. On a machine with network
connection, follow Step 1. and 2. and extract the files to C:\VirusScan\NSS and
launch NSS.exe.
The Virus definitions will
download to the local machine here: C:\Program Files\Common Files\Symantec
Shared\SymcData\virusdefs-2.5-e\<date.rev>).
2. In the C:\VirusScan\NSS folder,
create a folder called “VirusDef” (example C:\VirusScan\NSS\VirusDef)
3. Copy all the virus definition
folder content from \<date.rev> folder (example:20080725.003) into the
VirusDef folder
4. Copy the entire VirusScan
folder to a thumb drive.
5. Now you can start NSS.exe from
the thumb drive. It may complain about definition might not be the latest, but
you can skip that message.