I've had plenty of corrupt JPGs - they're certainly noticable since a single error tends to mess up an entire macroblock, often even the entire rest of the imag

I've had plenty of corrupt JPGs - they're certainly noticable since a single error tends to mess up an entire macroblock, often even the entire rest of the image. Was fun finding a bunch of my own photos like that. Luckily that was on a disposable copy and not primary storage, but it was enough to put me completely off non-checksumming filesystems.