Change All Product Images

I have a store with over 2 thousand products and I want to change a lot of the product images.

It seems that when the product pages were initialy created, the images associated with the products were given different folders (ex:/images/detailed/11/7004.png).

So, it does not seem as easy as drag and drop to overwrite images via server. I would have to know each individual image location and this would take for ever.

I investigated using the product import/export feature, and it seems that I would also need to know all individual locations.

Am I missing something? Can someone point me in the right direction?


just an idea "not sure" maybe using cmd with comand find ".jpg" in /images/* and replace with image file name.