Blu-ray DVDs in HD are the future.
19 May 2010Blu-ray DVDs can hold up to 50 gigabytes of high definition video. Its main uses are for storing high-definition video, PlayStation 3 video games, and other data, with up to 25 GB per single layered, and 50 GB per dual layered disc.
| Type | Physical size | Single layer capacity | Dual layer capacity |
|---|---|---|---|
| Standard disc size | 12 cm | 25 GB / 23866 MiB / 25025314816 B | 50 GB / 47732 MiB / 50050629632 B |
| Mini disc size | 8 cm | 7.8 GB / 7430 MiB / 7791181824 B | 15.6 GB / 14860 MiB / 15582363648 B |
High-definition video may be stored on Blu-ray ROM discs with up to 1920×1080 pixel resolution at up to 59.94 fields per second, corresponding to 29.97 frames per second interlaced or 24 frames per second progressive. Alternatively, progressive scan at 1280×720 pixel resolution can go up to 59.94 frames per second:
The Blu-ray Disc region coding scheme divides the world into 3 regions, labeled A, B, and C.
- Region A includes most North, Central and South American and Southeast Asian countries plus Taiwan, Hong Kong, Japan and Korea.
- Region B includes most European, African and southwest Asian countries plus Australia and New Zealand.
- Region C contains the remaining central and south Asian countries, as well as China and Russia
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