Hybrid optical disc utilising a dvd and a cd layer
AU2003269866A8
Hybrid optical disc utilising a dvd and a cd layer
DE10150025A1
Hybrid CD-DVD disk, in which the reading light beams for one data format pass through the information layers for the other data format, allowing a thinner disk to be obtained and a higher CD data density to be achieved
DE10116110A1
Optically readable data medium, especially a DVD plus, where the reflective surfaces of the recording tracks are curved to increase the optical path length of the laser light focussed on the tracks
DE19950707A1
Digital optical data disc has two disc surfaces, of which one carries a data recording in CD format and the other in DVD format, and marking(s) indicating format with which side is encoded
