Photos on iPod

I made a mistake - I tried to put photos on iPod but did not use photoshop...photos show up in "other" but I cannot access them or delete them. I have put photos on the iPod successfully in the past.....but I don't remember how I did it. So, now, I have some photos showing up in Photos when the iPod is connected to my PC, and a bunch of stuff showing up in "Other" that I cannot access (several GB worth....) Thanks in advance for your help!

atally