Behind-the-scenes featurettes, commentaries, and promotional spots.

However, the preservation community operates under an ethical framework of cultural conservation. Most prominent archives, such as those hosted on non-profit digital libraries like the Internet Archive, rely on the principles of . Archivists argue that if media companies refuse to keep these specific physical edits, bonus features, and historical artifacts commercially available, non-profit digital archiving is the only mechanism preventing this history from being permanently lost to time.

Modern operating systems like Windows 10/11 and macOS allow users to double-click an ISO file to "mount" it virtualizing a physical DVD drive. This tricks the computer into thinking a real disc has been inserted.