Files that have uppercase extensions (specifically
.JPG) are not opening or being recognized in Windows Live Photo Gallery.
.jpg files work as expected. What could be causing this issue?
Windows' file access is (generally) not case sensitive. Most Windows programs should not care. Most likely, the two 'different' extensions are from different sources, and the source of the
For example, you have two cameras. One names its files
It should be noted that the actual file system is case preserving (see comments below). It should not make any difference except in a small set of specialised applications - which does not include Windows Live Photo Gallery.