hairy_hen - sorry to hear about all the chaos in real life, that's always a bummer. Good to hear it's confirmed that the lossless stuff is lossless though ;)
...If you want any help getting said files to the internets, let me know via PM - I'd be glad to help in any way.

BuzziRules - fair enough. There will still be options - I'm sure someone could help you, or we just wait for the blu ray... It really is a very simple process to add audio, and it can be learned about and done in literally 5 minutes with a quick "click here, do this" type of guide, no brick walls involved ;)

Harmy - great to hear you're going for a set time for the mkv!!!!!! The authoring of a BD will be the "fun" part.. Even without audio ready, I'm hopeful you can figure out some kind of authoring that will work out the way we hope it will (especially without re-compression.. which has already been discussed quite a bit).