The main reason to go 96k is if you are authoring to DVDV and not DVDA. DVDA will not support 88.2 LPCM. If you are authoring your high res discs to DVDA, you can use whatever is convenient.
just to clarify a bit, DVD-Audio discs support just about any sample rate, including 88.2. it's the DVD-Video discs that only support 48 or 96 kHz...
Okay, as I have tried to make clear previously, I am just crawling out of the Neanderthal world of DAT taping, and going to the computer for the first time. As I will apparently be needing to archive on DVD (and this is just how unknowledgable I am) are there separate DVDV and DVDA discs, which ift seems there are from this post. If I decide to just go with DVDV, is there a difference between +R and -R discs, and if so, which is preferable?
I continue to thank each and every one of you for your reponses, comments, suggestions and help. This board is an invaluable resource.