I am planning a camping trip for later this summer. My biggest problem is figuring out how to get power for my CPAP. I have a device that plugs into the cigarette lighter in my truck and provides AC power. It is a "Belkin AC Anywhere Power Converter 140 Watt" (http://www.cdw.com/shop/products/Belkin...

Thanks for all of the advice. I purchased a new SD card (4GB) and have been using that. It is working perfectly now.

I'm hoping that someone can help me with the dreaded "invalid SD card" error that keeps happening on the ResMed S9 devices. I've seen several different discussions on this problem and so far none of the suggestions have helped. When I first got my S9 I pulled the data from the reader daily without a...