More significantly, however, it uses a phase-change method of recording developed by Matsushita.

ECONOMIST: Digital video discs

He invented a punched-card method of recording a design with the card itself being used as the method of creating the weave.

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The committee's report also details its unhappiness with how schools record the reasons for requiring a substitute teacher, noting that there was "no standard method of recording".

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But Philips and Sony were only willing to rejoin if the forum used more of their technology possibly even Sony's magneto-optical recording method instead of Matsushita's phase-change design.

ECONOMIST: Digital video discs