Hi @johnbishop , I think you give my CPAP techician (who is a salesman for the vendor) more credit than I do. 🙂
To get the data out of my machine, the technician needs to remove the card. When they say "not reliable", I think they want to force me to come to them for diagnosis etc., by telling you that only their software (which isn't as easy to get or use as Oscar) is reliable. Going back to them every time increases the chances that they'll push me some other piece of equipment.
But maybe I'm just too cynical....