The most commonly used method to carry out the installation of additional packages in Ubuntu is the apt-get. The working mechanism of apt-get is very easy to understand, you specify the software package to install and it searches for that particular software from the Internet and if found, apt-get downloads it to your machine and installs it. APTonCD is a graphical tool which allows you to create one or more CDs or DVDs of all the packages you’ve downloaded via apt-get and thus it creates a removable repository that you can use on other computers. The main advantage of APTonCD is that you don’t need to download packages again if you are doing a fresh installation of your system, you can restore the previously installed programs easily. Lets see how we can install and use it in Ubuntu.
Open the terminal and run the following command to install it.
sudo apt-get install aptoncd
Once installation is complete, launch it from System > Administration > APTonCD.
Click Create to save the downloaded packages to CD/DVD, and on the next step, select the packages which you would like to write to the disk.
Insert your CD/DVD and click Burn, it will start to copy all of your selected packages to the removable disk.
Thats all, now you will be able to reinstall your desired packages(if needed) without downloading them again by clicking Restore. Enjoy!