There is another 'decrypt' program with a more/better 'solution', if you want to spend the money, and have the tools at your disposal to re-encode the audio track to a modern codec.
I ran into this quite a long time ago, when the folks at Dolby Labs started monkeying around with their version of HD audio, TrueHD. As they started increasing the channel count from 5.1 to 7.1 (and beyond), my two later model bluray players (Sony and Samsung) started 'throwing up' at the stream (as in wouldn't play them). Dolby, unlike DTS (or whatever they are corporate wise calling themselves these days) didn't make TrueHD fully downward/backward compatible, with a standard Dolby Digital 'core' and a TrueHD 'difference signal', which is what DTS did with DTS-HD and DTS-HD/MA. Many DVD's and Blurays had to waste disc space with multiple soundtracks (TrueHD WITH an additional Dolby Digital tracks) instead of the one track that was readable by older players and outboard decoders that could only do older 'standard' lossy DTS.
So, I found some tools that could rip apart the TrueHD into multiple PCM tracks (without, of course, any loss in quality as PCM is a non-lossy/lossless format) and them remux that back in DTS (or DTS-HD/MA). So it's something I was completely familiar with. Again, zero loss of quality. And I was left with a disc fully 'readable' by those (new at the time but older now) stand-alone players. And, as my playback equipment (receiver/decoders and newer flat screen tv's) got newer/improved, the problem slowly faded away.
But of course, still have all those tools sitting on my systems. If Redfox did a bit of a tweak (I would think maybe easier than trans-coding the audio track into Dolby Digital, wonder what kind of licensing hoops did they have to go through to use that?), but to PCM (either multichannel or separate channels) , then I could simply take that and send it through the DTS encoder and even if I used the lossy encoder would end up with something far better than even Dolby at 640K (DTS standard bitrate being 1509Kb/s, with 'half-bitrate' available as well as '2x full-bitrate' as options).
Sounds good to me, in more ways than one. The DTS-HD/MA would end up indistinguishable from the original DTS whatever or TrueHD track, period. Sans the C* of course.
Like I said, there is a 'commercial' solution out there right now that does this, but as one already has a very decent decrypter in AnyDVD, why re-invent the wheel at $xxx? As I said in another thread, I own 6 other bluray players that are older than 2010 and aren't bothered by this, but how long are they going to last (I've already had to replace the physical drive in one set)?
