I'd like to assume it was just a straight transcoding to lossy formats...which needn't necessarily be audible (though of course it could be).Again, identical to the DVD-A version already released.
The only difference here is the inclusion of the videos.
It's Bjork's finest as far as I'm concerned.
BUT - buy the DVD-A as the quality is audibly higher.
To me this is a waste of time. You have already said that to you it is more open and detailed. That's good enough for most of us on this board I would suspect. Unless of course you have lots of time to make this comparison. We all know that sometimes the difference is subtle but given the opportunity to get the disc in either DVD-A or Dolby/DTS I think most if not all of us would pick the DVD-A everytime. It is a no brainer even if it is the same mix. Why wouldn't you choose the higher resolution stream? All you have to lose is possibly a few extra bucks.To me, it's pretty much all over - it's subtle, but the DVD-A is more open & detailed to my ears. There is simply more air there. The lossy versions sound a little more compressed overall. It's awfully hard to explain it.
I will - as soon as I have the time - sit down & A/B both versions track by track & post a description of exactly what I am hearing.