(01-03-2013, 05:01 AM)vsheline Wrote: As far as I know, many or most ResMed SD cards are the old standard 1GB cards. But newer machines running newer software (released in 2012) may be able to use newer SD cards.
ResMed cards ARE usually SD.
I think in this case, the problem is on the PC end, not the S9 end.
I think the S9 generally works with SD or SDHC cards. SDXC cards are fairly rare unless you're buying a big, expensive card.
With SD cards, even if the card is the right "type", sometimes one device won't take it, and another device will.