A new release of mrViewer is available. This version fixes the Attach Audio option and bug fixes the ability to save movies with sound which had gotten broken with the Dolby upgrade.
Feel free to grab it at:
https://sourceforge.net/projects/mrviewer/files/
For movies of what it can do:
http://youtu.be/dvEiWKV3WSU
http://www.youtube.com/watch?v=d92DTYv1TmM
http://www.youtube.com/watch?v=zC7U6gdoDm4
http://www.youtube.com/watch?v=d7C8sAmnNJc
http://www.youtube.com/watch?v=1oHnEpYrgXw
http://youtu.be/UG8m6ZxsNcA
http://youtu.be/4AgfaiTUkAE