I had time to watch a movie, and I decided on the Blu-ray version of MISSION IMPOSSIBLE II. It's my least favorite of the three MI movies, but it's the only one in the Blu-ray box set I hadn't watched, so I went ahead and got it watched tonight.
Spectacular picture. The sound was regular Dolby DIgital 5.1, probably at a higher bit rate than the sDVD, but it would have been better with an uncompressed audio mix.