You can download your videos here: http://www.killervideostore.com/user-login.php
... Just use your email address to log in.
Once you've downloaded the videos, you can burn them to your own DVD or save them on a backup drive.
The videos are packaged in zip files. If you have Windows 7 or above, you just need to double-click on each zip file to unpack the videos from the zip containers.
If you have Windows XP, you may need to download the FREE zip program:
Do NOT buy the commercial versions of either this programs. Use the free versions.
If you have any problems running the videos, you may need to download the free Quicktime video player: http://www.apple.com/quicktime/download/