Over deze norm
Specifies characteristics of 90 mm Optical Disk Cartridges (ODCs) using the phase change technology, with a capacity of 650 Mbytes using Phase Change PD format. This present International Standard specifies two related, but different implementations of such cartridges. Type R/W - provides for data to be written, read and overwritten many times over the whole recording surface of the disk using the phase change recording and read-out method. Type P-ROM - provides for a part of the recording surfaces of the disk to be embossed by stamping or other means. This part of the disk is read without resource to the phase change overwritable effect. All parts which are not embossed provide for data to meet the requiements of Type R/W. Type O-ROM - Provides for the whole of the recording surfaces of the disk to be embossed and reproduced by stamping or other means. This type of disk is read without recourse to the phase change overwritable effect.
|Engelse titel||Information technology - Data interchange on 90 mm overwritable and read only optical disk cartridges using phase change - Capacity: 1,3 Gbytes per cartridge|