mrpotatohead said:

Quick question - I have the 2.1 MKV downloaded and when I try to add it to txMuxer, I get an error: Matroska parse error: invalid H264 NAL unit size. NAL unit truncated. Googling that implies that the .mkv is not compatible with blu ray and I need to do some type of re-encoding.

So what is the right way to burn the 16GB .mkv file to a blu ray that I can play on my PS3?

2.1 has not yet been released but a test render is expected by the end of the week. You may have had the same problem that I had where you downloaded from a source other than Harmy. The official source is Myspleen which I unfortunately do not have invites to give. By the way that is weird I am a member of myspleen but I can't send invites to anyone?