Unless I am doing something incorrectly, it would appear that not all Codec's are suitable for each encapsulation option. If that is the case, it would be great if after setting the 'Encapsulation' setting, Video and Audio Codec's that are not compatible or suitable for that encapsulation be made shaded out or inacessible. I think that might be helpful for people like me that are ignorant about what codec's go with which encapsulation.
Thank you.