Blood.and.Chrome.Wondercon.Trailer.1080p.stereo.mp4 has the video track from the torrent "Blood and Chrome trailer test" with the audio track changed from:
old: AAC 44.1KHz mono    72Kbps
new: AAC 48.0KHz stereo 165Kbps sourced from lossless flac.

General
Complete name             : Blood.and.Chrome.Wondercon.Trailer.1080p.stereo.mp4
Format                    : MPEG-4
Format profile            : Base Media
Codec ID                  : isom
File size                 : 84.6 MiB
Duration                  : 1mn 35s
Overall bit rate mode     : Variable
Overall bit rate          : 7 415 Kbps
Writing application       : Lavf52.32.0

Video
ID                        : 1
Format                    : AVC
Format/Info               : Advanced Video Codec
Format profile            : 
Format settings, CABAC    : No
Format settings, ReFrames : 4 frames
Format settings, GOP      : M=1, N=12
Codec ID                  : avc1
Codec ID/Info             : Advanced Video Coding
Duration                  : 1mn 34s
Bit rate                  : 7 302 Kbps
Width                     : 1 920 pixels
Height                    : 1 080 pixels
Display aspect ratio      : 16:9
Frame rate mode           : Constant
Frame rate                : 23.976 fps
Standard                  : NTSC
Color space               : YUV
Chroma subsampling        : 4:2:0
Bit depth                 : 8 bits
Scan type                 : Progressive
Bits/(Pixel*Frame)        : 0.147
Stream size               : 82.6 MiB (98%)
Language                  : English
Color primaries           : BT.601-6 525, BT.1358 525, BT.1700 NTSC, SMPTE 170M
Transfer characteristics  : BT.601-6 525, BT.601-6 625, BT.1358 525, BT.1358 625, BT.1700 NTSC, SMPTE 170M
Matrix coefficients       : BT.601-6 525, BT.1358 525, BT.1700 NTSC, SMPTE 170M

Audio
ID                        : 2
Format                    : AAC
Format/Info               : Advanced Audio Codec
Format profile            : LC
Codec ID                  : 40
Duration                  : 1mn 35s
Bit rate mode             : Variable
Bit rate                  : 165 Kbps
Channel(s)                : 2 channels
Channel positions         : Front: L R
Sampling rate             : 48.0 KHz
Compression mode          : Lossy
Stream size               : 1.88 MiB (2%)
Language                  : English