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Meridian Lossless Packing
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The Meridian Lossless Packing logo
Meridian Lossless Packing, also known as Packed PCM (PPCM)citation needed, is a proprietary lossless compression technique for compressing PCM audio data developed by Meridian Audio, Ltd. MLP is the standard lossless compression method for DVD-Audio content (often advertised with the Advanced Resolution logo) and typically provides about 2:1 compression on most music material. All DVD-Audio players are equipped with MLP decoding, while its use on the discs themselves is at their producers' discretion.
Dolby TrueHD, used in Blu-ray and HD DVD, employs MLP, but compared with DVD-Audio, adds higher bit rates, 8 full-range channels, extensive metadata, custom speaker placements (as specified by SMPTE), and timecode.
MLP in packaged media formats
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HD DVD |
Blu-ray |
DVD-Audio |
DVD-Video |
| Codec |
Status |
Channels |
Max Bit Rate |
Status |
Channels |
Max Bit Rate |
Status |
Channels |
Max Bit Rate |
Status |
Channels |
Max Bit Rate |
| MLP |
Mandatory |
2 to 8 |
18 Mbit/s |
Optional |
2 to 8 |
18 Mbit/s |
Mandatory |
1 to 6 |
9.6 Mbit/s |
Not available |
See also
External links
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