I just came back from vacation (Carter Caves) to find that the 130 pics I took are gone from my memory stick. (I have a Sony Cybershot camera...its older and only has 1.3 MP.). Is there anyway to find them again. (or better yet, to know exactly what happened to prevent it from happening again?) My theory: 1. The heat of the van we were in. 2. The moisture from the caves. 3. The moving from hot to cold in and out of the caves. I would love to know a way to recover them if it is possible. (they dont show up on the camera or my ZiO reader at home).