(11-01-2013, 12:50 PM)Sleepster Wrote:(10-31-2013, 05:49 AM)zonk Wrote: The answer to your question: No. ResScan does not change/erase/write anything. ResScan only read whats on the card providing there is data on the card to be read.
That's true. But your computer's operating system (Windows, Mac, Linux, or whatever) may.
Macs have been reported to write some data to SD cards just when you insert the card. Arrogant, self centered bastards!
Some PC viruses will do that, too. Normally, a Windows PC won't do that, there are lots of arrogant programmers who write programs that do things like try to "index your music files" every time you plug an SD card or USB drive into your computer. There may be some programs that write some sort of "index" file to the SD card like Macs do, but I haven't heard about it.
Because of the brain damaged and invalid way ResMed writes data to the SD card, if some "standard" program writes a file to the card, the CPAP machine may refuse to use it any more.
You can put the write protect tab to "lock" on the SD card to prevent the computer from writing to it.
Even if you do damage the SD card, the "compliance" data is stored on the machine itself. Unless your DME/doctor is an idiot, you won't have any insurance problems. However, many DMEs and doctors are idiots.
On a PC, unless you've written data to the SD card, it's not necessary to eject it. I never eject my S9 SD card from the PC. I also don't bother to unplug or "double" turn off the blower, just do the normal turn off. I do let the machine stay off for a few minutes before I remove the card. If I don't, sometimes I don't seem to get the data from the last session.
If you do "damage" the card, just act dumb. That can happen if you never take it out of the card. SD cards aren't that reliable.