I wonder who makes the flash memory chips in this CF card. In my experience, non-Sandisk CF cards tend to drain the battery of whatever device that they are in faster than a Sandisk CF card even if the device is not used. For example, if I leave a 1GB Kodak CF card in my Zaurus SL-C760 overnight, the battery will read low in the morning. If I leave a 4GB CF Sandisk card in my Zaurus SL-C760 overnight, the battery will still be full in the morning.