| 摘要 |
The invention concerns a method and a device for deteriorating recording disks comprising at least an electrically conductive, in particular metal, layer comprising at least a couple of electrodes (15, 16) connected to an electric current source (22) and means (6) for moving, relative to each other, said couple of electrodes in front of at least one face of the disk (1) to be deteriorated, such that electric arcs are produced between the electrodes and the electrically conductive layer, causing punctual deterioration zones in said electrically conductive layer. |
