Dolby Digital er markedsnavnet for en serie av lydkompresjon (audio compression) teknologier av Dolby Laboratories.
| HD DVD | Blu-ray | DVD | DVD-Audio | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Codec | Player support | Channels (max) | Max Bit Rate | Player support | Channels (max) | Max Bit Rate | Player support | Channels (max) | Max Bit Rate | Player support | Channels (max) | Max Bit Rate |
| Dolby Digital | Mandatory | 5.1 | 448 kbit/s | Mandatory | 5.1 | 640 kbit/s | Mandatory | 5.1 | 448 kbit/s | Optional in video zone for playback compatibility on DVD-Video players | 5.1 | 448 kbit/s |
| Dolby Digital Plus | 7.1 | 3 Mbit/s | Optional | 7.1 | 1.7 Mbit/s | N/A | ||||||
| Dolby TrueHD | 8 | 18 Mbit/s | 8 | 18 Mbit/s | ||||||||
- (en) Offisielt nettsted
- (en) Dolby Digital – kategori av bilder, video eller lyd på Commons
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