Boy, that HD Audio Solo Ultra sure has some unnecessarily retricted limitations. Hope they don't charge too much for their software. I sure wouldn't buy it.
You know, when folks talk about a mandatory limit before using compression, they are talking specifications; not reality. The DVDA spec may very well require MLP for 96/24 5.1 DVDA. (I'll bet you all a cookie and a soda that Meridian had a big hand in the writing of that particular specification. ) What is "proper etiquette" for a DVDA does not necessarily describe the physical limitations of the medium.
The group who wrote the DVDA specification required MLP for that data rate in part for political purposes and in part for the physical size limitations of the DVD. Most modern albums would not fit on a DVD when recorded at 5.1 96/24 without the use of a compression algorithm; especially when one includes a DTS/DD version and a stereo version.
But there is sure no reason to not record 5.1 96/24 onto DVDA when an album does fit. Can anyone think of a case where a product exceeds its specification at no additional cost to the customer?