I searched but couldn't find out if this behaviour is known:
while batch adding these two files...
06220358.jpg
06220358.JPG
...Coppermine refuses the second file as "duplicate" (DP).
"Bug or feature"? :)
Hmm... I would say if it's case-insensitive to the file extension, it would be a feature. If those files are on a Windows server, they would be seen as the same thing since Windows is case-insensitive. It would make sense if the case-insensitivity applied to the rest of the name since we have to make sure the script works for as many server setups as possible.