I finally got the final and true word today from ResMed about whether this machine records AI and AHI.

It doesn't.  Since it's essentially for timed respirations and "a hospital machine" it doesn't record AI and AHI, though it does say 0.0 for each on download, which I think is misleading.  I want my old machine, my VPAP AUTO 25 back so I can track my progress.  I first got this machine when my old Doc ordered a totally ridiculous 30/25 pressure.  The RT at my DME told him this would not work- no home mask can hold that amount of pressure. He wouldn't listen.  I am currently at 16/12 from my new Doc, but we won't get any data from this machine that this is working.  The good news is that I'm feeling good- no need for naps, though I'm sleeping a ridiculous 10+ hours 9 out of 10 nights.  I just needed to vent as I have this monster of a machine and no idea when I can switch it out.

Thanks for listening,

Mary Z.