The Meridian Lossless Packing logo
The Advanced Resolution 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 1.5:1 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 [edit]
| Media format |
Status |
Channels |
Max. bit rate |
| HD DVD |
Mandatory |
2 to 8 |
18 Mbit/s |
| Blu-ray |
Optional |
2 to 8 |
18 Mbit/s |
| DVD-Audio |
Mandatory |
1 to 6 |
9.6 Mbit/s |
| DVD-Video |
Not available |
See also [edit]
External links [edit]
