Linear Pulse Code Modulation
From Hydrogenaudio Knowledgebase
Linear Pulse Code Modulation (LPCM) is one of the standard audio formats in DVD, next to AC3 and DTS. Unlike the other formats, it's never compressed, and therefore offers the best quality. Also, being an uncompressed format, it doesn't require expensive encoders, therefore being the best option for home made DVDs.
It's always presented in 48 kHz, and Stereo. Data rate limitations in the DVD format don't allow it to be used for Multichannel audio.
