Topaz Labs created JPEG to RAW AI to help solve a problem that they believe many people have. Let's say you were sent a JPG file, but it was highly compressed, and you want to edit it. Under normal circumstances, you couldn't edit the photo too much. But after running it through JPEG to RAW AI you have much more potential for editing.
Interesting. I think I’ll try the JPEF to RAW AI software. I have a bunch of 3MP images I shot on a Sony point-and-shoot before I bought my first DSLR (2006). Maybe JPEFG to RAW AI can improve those JPEG images.