My Canon SD870IS camera numbers the images starting with IMG_0001 and the numbers move up in order. When I browse through the pictures on the camera, they read 100-0001, 100-0002, etc. Yesterday, I got up to 100-4017. A stranger approached me and asked if he can put his SD card in my camera so I can take a picture for him since his camera is out of battery. I said "No problem" and did it for him. When I put my SD card back in, the pictures started being numbered as 145-2078, 145-2079, etc.
I looked onto the SD card and found two folders, 100CANON & 145CANON, in the DCIM folder. All of the pictures taken after I inserted the stranger's SD card went into the 145CANON folder. I deleted the 145CANON folder and took another picture. It still didn't fix the problem.
QUESTION: How do I fix this problem? I want to stop my pictures from being numbered as 145-20xx and to continue with my original chronology of 100-40xx and onward.
I looked onto the SD card and found two folders, 100CANON & 145CANON, in the DCIM folder. All of the pictures taken after I inserted the stranger's SD card went into the 145CANON folder. I deleted the 145CANON folder and took another picture. It still didn't fix the problem.
QUESTION: How do I fix this problem? I want to stop my pictures from being numbered as 145-20xx and to continue with my original chronology of 100-40xx and onward.