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 The process is based on coating a DVD disc with a film of graphite oxide that is then laser treated inside a DVD writer to produce highquality graphene electrodesDVD writer laser temperature??? First thing first We need to take off a laser diode from dvd driver, open it, find moving part with lenses, usually there is you'll see 2 diodes IR for CD and just red for DVD, carefully take them from hit sinks, better before you start doing that solder together all the diode's terminals, in order to prevent damage from static electricity How To Make A Burning Laser 9 Steps With Pictures Wikihow Dvd writer laser power