Thanks Tim – I admit the institutional scenario where you don’t control all the computers isn’t something I had considered. I see where you’re coming from now… that makes sense and it makes the case for ASCII logs much stronger. Let me think about it some more. The original justification I had for writing in binary instead of ASCII is that ASCII inflates the data substantially, and the SD card is one of the more power hungry components of the system so I was trying to keep the amount of data being written minimal. But maybe that’s not as big an issue as I thought… I’m going to revisit the power numbers again. Maybe I was getting a little power stingy.