Hi Carl,
thanks for reply. I realize the main idea is to have Mirage conversion implemented which is great for Mirage users. Every software developer uses the way which is more convenient in specific case. Often efforts are duplicated. That's why I pointed CMIOS9, of course, assuming you know it.
My work flow is a bit different, I'm looking for local preview tool before powering on Fairlight system. I'm not only interested in IIx, I have CMI III and its library (assume you know who can supply it :). For IIx floppies I found simple way to use Fairlight iOS app, It has all the compatibilities to load all native IIx formats. That is great for me, at least, as I said, for preview purpose. According to conversation with developers, that app will never support CMI-III voice file format and it's layering. That's sad. CMIOS9 also have limited export capabilities for CMI-III. I meant it could export wavs ok, but not layering information.
So, that's the reason why I'm looking for single tool with multiple format support. VJO Wave looks very promising for these needs but it requires to have implemented a lot.