There have been issues with both of these cameras.
The Casio would produce a percentage of their shots with a blue tint. They corrected this less than a year ago with a firmware update (V1.02 I think it was).
So be sure you get a current production camera with the updated firmware installed.
The Sony owners report a high percent of blurred photos. The problem appears to be that the camera selects an inappropriate F stop under low-light condtions which results in a very slow shutter speed.
The camera does not have a full range of F stops like most cameras, it only has a choice of F2.8 or F5.2 and it selects F5.2 under some low light conditions.
The Sony issue has not been corrected.
You can get excellent photos with the Sony, but you must use the manual controls to achieve this, under low light condtions. So it is not a reliable point-and-shoot camera.
i was wondering which camera is better of the 2?which one has better pic, quaulity?
-sony Cybershot DSCW1
-Casio Exilim EX-Z4