MLP or Meridian Lossless Packing is the format mandated by the DVD forum for use in 5.1 dvd-a's (titter) at high bitrates in fact without MLP davd-A(snigger) wouldn;t be have enough memory to accomodate these high bit rates. SACD is also losslessly packed, although they don;t advertise the fact so much.

cheers

julian