automatic updating of sources.list

Christian,

Would it be possible for you to push an update that changes
/etc/apt/sources.list from "debian-multimedia.org" to
"deb-multimedia.org"? Possibly through the deb-multimedia-keyring
package?

I have configured several Debian systems for donation to other people.
They know how to do updates, but are not capable of modifying their
sources.list file. I no longer have access to many of these machines.
So it would be a great help to them if you could implement my request.

Thanks.

-Rob