fwiw there are at least 3 problems with this
1) MC doesn't have all the same dsp capabilities as any minidsp device
2) minidsp do not publish any formal specification of their config file formats so it seems impractical for jriver to depend on this
3) the specific format of a minidsp file varies with the plugin (and device) so there are actually quite a few variants of the format (floating point vs fixed point devices being the major difference)
It's not *that hard* for someone to write a converter as the minidsp file formats are not so hard to parse & MC does have an MCWS call which can load a dsp config. Unfortunately this format is also not public api so you have to reverse engineer it yourself ....
on the bright side, most of this work has been done already inside
https://yabb.jriver.com/interact/index.php/topic,129609.0.html as it can read/write various minidsp config files as well as translate filters into an MC compatible format
can you give some examples of the sort of config files you're interested in? it might be fairly straightforward to write a translator in there depending on what is in them