Showtime

A 1080p H264 (48000, AC3) movie decodes and plays correctly.

Any subsequent movie that is loaded automatically via the new autoplay feature results in the "cpu is too slow to decode this video / Unable to open Cell codec" error on that one, and a stuttering playback.

The second/subsequent movie has the exact same encoding as the first.

Note: At first, the first movie had the same "cpu is too slow" error, but it disappeared after having showtime on for some time, so it had the time to determine the encoding of all the movies in the folder. The icon in front of each movie changes to indicate this. I think the autoplay of the second movie loads the movie "too quick", so before Showtime can determine the encoding and hence falls back to software decoding.