DVD-D is a self-destructing disposable DVD format. Like the EZ-D, it is sold in a cardboard sleeve, and begins to destroy itself after several hours.
DVD-D now exists as one time play only for movies, limited time play for video games, and recordable DVD-D.
The medium in itself is copy protection neutral and does not require additional DRM (Digital Rights Management) type of applications to be installed for the content to be accessible.
This medium, however, does not stop users from copying the disk before it is destroyed.
How it works
The technology used for DVD-Ds is different from the one for disposable DVDs a few years ago. For those, while in its packaging the disk is isolated from air. When the packaging is opened, a special coating on disc starts to decay due to chemical reaction with air. As the reaction progresses the disc surface changes its color and after predetermined time it becomes unreadable. [1]
For DVD-D on the other hand, the mechanism is linked to the rotation of the disk and not to some chemical coating: "[it] can be kept, even in its opened package, indefinitely." [2]. The German website linked from http://www.dvd-d.com states "Once the rotation in the player has started, the countdown for the usage time frame begins." [3].
Some people also suspected a coating reacting not with sunlight or air, but with the laser of the DVD player [4].
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