Audio in video files is misidentified as Dolby Digital

[pizzaguy541]

I have one video file that the description on the screen is correct that it is DD 5.1, but everything else is described as DD when it's 2-ch stereo.

The ffmpeg output from the correct file is:

Stream #0.0(und): Video: h264, yuv420p, 1280x528 [PAR 1:1 DAR 80:33], 1590 kb/s, 23.98 fps, 23.98 tbr, 66893 tbn, 47.95 tbc
Stream #0.1(und): Audio: aac, 48000 Hz, 5.1, s16, 257 kb/s

and a file that is incorrectly identified shows this:

Stream #0.0: Video: h264, yuv420p, 640x360 [PAR 1:1 DAR 16:9], 817 kb/s, 29.92 tbr, 1k tbn, 59.94 tbc
Stream #0.1: Audio: aac, 44100 Hz, stereo, s16, 105 kb/s

Is there any way to have Mezzmo downmix the audio to 2-ch stereo on non DD files?

I've even tried re-encoding the files using a different audio codec and a lower bitrate, but it didn't change the way they were identified and played.

Edit: My BluRay player is a Sony BDP-S370 and I'm using an updated profile (SonyBDP-NTSC-NoDivX.prf) that you have sent me for a previous problem.