http://wiki.iteadstudio.com/Stackable_SD_Card_shield_V3.0 (set to 5V logic)
I even haven't attached my sensors yet :( I have tried with 3 SD cards so far, each formatted with SD Memory Card Formatter and each one has this problem.
There is a separate question like that (Corrupted files generated by Arduino with SD library. How to avoid that?) but it concerns SPI confict but here SD is my only SPI device on the bus.