I've got this issue..
my main suspect is my memory card..but gonna ask around first if anyone here is experiencing this
Issue:After snapping a photo, the gallery crashes, returns to camera
Accessing the gallery manually and selecting the recent photo to view..gallery crashes and returns to apps tray
Restarting the phone will then show the "image not available" for the recent photo
Watching videos all okay, until after a certain period of time..error show "unable to view file type"
Restarted the phone and can watch the video again
Only happens to media files on memory card, no issues with medias on internal memory
Steps taken:Reformatted the memory card using the phone, dates shows the day I formatted ie: xx/05/2013 (I did it somewhere in May)
After the occurrence AGAIN of crashing of gallery, I noticed that the date is no 01/01/1970
[attachmentid=3472227]
My phone's details:[attachmentid=3472226]
Suspect:Memory Card - SanDisk MicroSDHC 32GB Class 10 MOBILE ULTRA
EDIT: Pardon the white dots..I enabled the touch points via the dev options

After seeing ur post, I check my SanDisk 64GB class 10 card the date also show 01/01/1970. Its my 3rd SanDisk class 10 card already. 1st was 64GB class 10, 2nd wad 32GB class 10 n currently is 64GB class 10. 1st n 2nd suddenly juz damaged for no reason. I heard that we can claim for replacement. Anyone successfully claim for it? How can I submit my claim for my 1st n 2nd cards? I m unable to find the Samsung card.