I have some videos in my gallery.. (sd card). about 700mb each.. more than 5 videos. All are disappeared in one day with out anything i did. Other small videos in the same folder remains same there. But the disappeared videos(movies) can't be shown anywhere in the phone. How it happen? What is the reason? I already checked the hidden folders and also checked the sd card in my pc. The files are missing. I dont know the size of these files are reduced from the memory. Please help...