Yes, the BluRay true hirez codecs DTS HD MA (stands for master audio....as opposed to just DTS HD which is still lossy) Dolby TrueHD and LPCM 24/xxx are great. The audiophile world doesn't yet, though, have a boatload of true hirez to pick from. I was hoping even the BluRay Audio (no video, or very little) titles would start to flourish but they haven't. The pickings aren't awful, but not in the hundreds yet.