I could answer better if you could describe the specific improvements you're looking for.
In general, each new version runs faster, looks better, is easier to use and control, networks better, supports more formats, improves DSP support, etc.
For me, all of these things come together to help me enjoy my media.
With that said, even v1 played music. So I suppose it comes down to a personal decision.
For what it's worth, I sincerely appreciate everyone that does support development by upgrading. Thanks to all of you.
I believe I've stated quite specifically what I'm hoping could be improved upon even further:
raw 2-channel sound quality. I wish I could pinpoint in detail the areas needed to be looked at to achieve this goal, but sadly I'm not a software developer;
you guys are.
For what it's worth though: some have mentioned that the potential of memory playback has yet to be fully attained by JRiver, and that this could be at least partially achieved via larger file size allocations(i.e.: whole albums). I know this has been a hotly debated topic, and likely still is, both on a purely theoretical/measurement level and with regard to theory vs. listening impressions(where many other factors than file size allocation may "come into play"). My interest is what is actually
audible..
Possibly even more important would be isolating, somehow, the JRiver programme more or less completely from most of the activities on ones (HT)PC, perhaps via a feature that "kills-off" any or most of the Windows/Mac activities except JRiver MC itself. I firmly believe this would make a heck of a difference in providing even better sound quality, and I'm guessing it's the sole most important aspect to attain this - at least in view of the quality level of JRiver playback as is.
From my point of view some of the discussions on sound quality, and how to improve on it, has not only bordered on arrogance and stubbornness on the side of some of the developers and meta-testers, to the point even where
any discussion on this topic seems blacklisted. That's unfortunate. For a mostly "meat and potatoes" user of the JRiver application like myself where 2-channel sound and picture quality over my main audio/video setup is paramount, improvements in these core areas is what I'm looking for the most - not that all the other developements/features/improvements are not appreciated.
To sum up: with regard to image quality via Blu-ray playback, I couldn't put a finger on it(though admittedly I'm less the videophile than audiophile). 2-channel Blu-ray sound, when downmixed(i.e.: not PCM or other lossless 2.0), I still got the occasional clipping at max source level on some discs(maybe there're some settings I'm not applying properly), but other than that the 2-channel downmix quality is very satisfying - also in retaining the full bitdepth and sample rate(where TotalMediaTheatre's dts.dll file is used, which it is in my case). 2-channel sound quality via music playback is extremely good, though I've heard two other applications that improves upon JRiver here - and they share being rather simple/small programmes with a lot of attention paid on making the Windows platform less influential, as well as having a keen eye on the importance of memory(RAM) playback.
Thanks for a great programme which I've enjoyed immensely for some years now. I'm looking forward to MC18!