This may be a dumb question, but can DVDs get damaged from being "shaken" in the air? I sometimes do this before I put a disc back into its case to get rid of any dust particles before putting it away. I'll sort of "wave" the disc back and forth in the air. Could this type of motion be harmful to the disc physically or risk damaging the data layer or anything like that? I assume that the answer would hold true to any kind of optical disc (DVD, blu-ray, etc.)?