Well, you see, the problem with Sleepyhead is that i haven't installed it yet, and now there is no data to give to it...well there is one night's worth.
This problem is apparently caused by Win8 writing data ( I think it's the System Volume Information folder) to the card when you insert it in your computer's card reader. I haven't hear of it affecting older Win versions.
The ResMed card reader will reject any card that has data on it that wasn't written there by the ResMed device. I am not aware of any system other than Win8 that causes this problem. I think there is a way to set your Win8 system to prevent this but I don't have it at hand right now. I remember it had to do with the indexing function and I think the answer may be to disable file indexing on the computer. However, the easier way to try is to lock the SD card before sliding it into the computer reader. That doesn't work on all computers though since some readers ignore the slide switch lock setting and go ahead and write to the card anyway. Go ahead and try it and you may get lucky.
08-17-2014, 02:43 PM
(This post was last modified: 08-17-2014, 02:56 PM by surferdude2.)
I don't have access to a Win8 box today but I just did an experiment with my Win7 system and wrote a hidden file to the ResMed SD card. Sure enough, the S9 reader offered to format it. Then I put the card back in my puter and deleted the hidden file and then the S9 took it without a squawk. Soooo..if you're having trouble getting the SD card accepted by the PAP machine, you can probably set your computer view to allow viewing hidden files and manually delete any files or folders on the SD card that aren't ResMed. I think the only hidden ResMed file is the journal.dat file, leave that one and dump all other hidden ones. Do be careful and don't dump anything other than the alien hidden files. Check the attributes before deleting anything just to be sure.
08-17-2014, 04:31 PM
(This post was last modified: 08-17-2014, 04:51 PM by surferdude2.)
I've done considerable research (spelled fiddling around) on this issue and it looks like the ResMed machine will refuse any card that has a file dated differently than the latest date in the hidden journal.dat file. Apparently the machine's system references that file when first reading the card and it better find the file dates of all files onboard to be in agreement with what had been written to the journal.dat file. That pretty much stops you from using the card for anythings else even though it has plenty of free space.