Blu Ray

The huge storage capacity of optical discs such as Blu Ray are useful only in theory. In truth, all the information ever written would only amount to around 20Gb, and the entire Internet would fit onto a floppy disc (at a pinch). Whilst storage media can be filled to capacity, it is usually topped up with superfluous data - for example, Windows Vista contains over 36,000 identical packages of cryllic fonts, and a high bitrate 47 hour sample of complete silence, which is looped as a background process from the moment the machine is switched on.

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