ResMed AirSense 11 SD card not getting SOME data

[SKPC]

I am a newbie to CPAP and have a ResMed 11 (fought it for years then gave in and have not slept better in years!) - I use MyAir and I have a 32 GB SD card. I am using Oscar as a personal software for monitoring. 

My issue is that MyAir has received data for the month of March - everyday - but my SD card tp Oscar is missing data from March 8, 9 and 18 through 25. I reformatted my old card and tried again - same result - I got a brand new card, did a full format and tried again - same result. Is the data not transferring? Is the data actually missing in the ResMed 11? The only thing I have not done is unplug and replug-in the machine - I leave it on 24/7.

Any help / thoughts would be appreciated. I have my first evaluation doctor's visit in 3 days. TIA!

[staceyburke]

You have to have the card in the machine while you sleep. If it is not, it only keeps compliance data and NOT full Oscar data.

[Gideon]

Your device only writes the detailed data to the SD card in real time. It must be in your device to overnight to receive that detailed data.

[SKPC]

Thanks - the card never leaves machine except to upload to Oscar then right back.

However, I have trouble understanding your statement because people who do not use a SD card still have their data in the machine - so, if the data is there, why won't it transfer / upload?:

[Crimson Nape]

Only the summary data is stored in memory without an SD card. The high resolution data is only written to the SD card in real-time.

[SKPC]

Many Thanks - the SD card was in the machine the whole time so I guess the card must have been bad! It's gone now anyway.