CPC Subgroup Additional Only
G11B 2220/25 characterised in that the disc is based on a specific recording technology
Full Title
Record carriers by type > Disc-shaped record carriers > characterised in that the disc is based on a specific recording technology
4 direct subcodes
Child Classifications
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- G11B 2220/2504 Holographic discs; Holographic digital data storage [HDDS]
- G11B 2220/2508 Magnetic discs
- G11B 2220/2525 Magneto-optical [MO] discs
- G11B 2220/2537 Optical discs