Why can't I open my picture document/folder?

Because my phone was becoming slow due to the many pictures I added on there, I decided to transfer them to my laptop. I made different folders for them and simply went to my iPhone's drive and moved the photos to my Pictures. I did the same with the pictures from iPod, and put the photos from both devices together. There was a Really important folder of pictures but when I tried to open it, a box came up saying "(my file) is not accessible. This file or directory is corrupted and unreadable." Please tell me if there's any way to recover my photos from there and/or fix the folder?

It depends on how you saved the file on your laptop. When ypu saved the file make sure it was under (JPEG) file.