Windows 7 Burning .mkv to Blu-ray

[mrtom82]

Most of the blu-ray movies I get are .mkv and this is a problem because I'm using Nero 9, which will let me play them, but not burn them to a blu-ray video disc. I have to convert them first to .avi then burn which takes forever. Anyone know of a good program that will let me burn .mkv to blu-ray video?

 

[reghakr]

Are .mkv files capable of 7.1 channel output?

Do you happen to have a small one you could upload?