It's bitten me quite a few times as well. Maybe I will try this read-only approach and see how it goes. I agree that it won't help against corruption on the SD

It's bitten me quite a few times as well. Maybe I will try this read-only approach and see how it goes. I agree that it won't help against corruption on the SD card itself, but I suspect that most of the times the SD card has been corrupted, it has been due to power failure (or bad power supply) combined with writes at the same time.