你是對的; 舊版是LPCM新版是TrueHD
不過對我來說, LPCM, TrueHD 跟 DTS-HD MA都是一樣的, lossless音效就是lossless, 不會有差異, 即便很多人偏好DTS-HD MA

以下是我看到一篇新版皇家夜總會review的節錄...反正重點大概就是, 他覺得LPCM跟TrueHD差不多, 硬要分的話, LPCM好上一點點
'Sony has ditched the uncompressed PCM 5.1 Surround track of the original "Casino Royale' Blu-ray and replaced it with a Dolby TrueHD 5.1 Surround option (48kHz/24-bit). The switcheroo doesn't result in any appreciable drop-off in quality, though after a series of very anal comparisons, I can say I would probably give the slightest of edges to the PCM -- but only the slightest.'