Ken, does that mean that, in essence, there are some cameras that are incompatible with the edge? Meaning, that when you take pictures on an SD card in those cameras, you won't be able to then just pop that SD card into the edge and be able to access the pictures?

I've had bad luck with Sandisk 2GB SD cards in general in the eDge (one says Class 2, the other doesn't specify) but even the grocery store brand SD card I bought works just fine. Even the crappy little 128/256/528MB cards that came with cameras work, as do all my SDHC 8GB and 16GB (Transcend). But for whatever reason, I have a couple of Sandisk 2GB that just won't play nicely, so I don't use them in my cameras (both Canon Powershots, one a big monster and one pocket sized). I just assumed it was an SD card issue and not a camera issue, since other cards work fine.

Which camera are you using Forbdneye?