How much data fits on a DVD?

Despite its issues, software-based data destruction methods are inexpensive and easy to use for the average computer user. Darik's Boot and Nuke is an open source, GPL-licensed data destruction program that fits on a single 3.5 inch floppy disk. Its programmers claim that, when used on boot media, the program can reliably destroy all data on IDE and SCSI hard drives. This is intended to defeat most forensic data recovery methods and bring the program into compliance with United States Department of Defense and Royal Canadian Mounted Police standards, among others.