How to backup programs to DVD

Solution 1:

yeah you can use aptoncd for it

    APTonCD is a tool with a graphical interface which allows you to
    create one or more CDs or DVDs (you choose the type of media) with all
    of the packages you've downloaded via APT-GET or APTITUDE, creating a
    removable repository that you can use on other computers. APTonCD will
    also allow you to automatically create media with all of your .deb
    packages located in one specifier repository, so that you can install
    them into your computers without the need for an Internet connection.

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Installation

sudo apt-get install aptoncd 

This will work only if you didnt clear the apt cache