Hey Anth,
I don´t know which version of their software have used, but I´m using it as well from early beginning. there have been several bugs that has been fixed since then, especially according to dolby true HD-support.
BDEdit which has been released arround autum 2012 has BD-J support which EasyBD has not (think about the name – you know why it´s called easyBD?!)
and compared to DoStudio: some parts of the software are licenced from DVD Logic, same with BD-Reauthor Pro (for Scenarist) or BD2DoStudio Tool.
according to BDCMF: I know the DVD Logic-guys working very hard to improove the programm, and as far as I know it will be implemented soon.
In the mean time you can create BDCMF using Rivergate Blustreak Tracer CMF, which could implement copy management, too.
and finally sony CMF support: I have created a lot BD-premasters that has gone to replicators all over europe – non of them required sony CMF – all asked for BDCMF, but it might be different within the US.
I don´t like Encore, too – but the output definetly is BD-spec-complient, as it uses sonic/rovi muxer, you might look at the ves-files that will be created while importing assets. there have been several guys (like bruce nazarian as well) that tested with sony and panasonic stream verifier several times – NO errors.
just my 2 ct (euro) 😉
danny