I've found that most claims of extreme video or image compression don't hold up under scrutiny. There's just too much research that has to go into it and so many tradeoffs to consider.
It only compresses images, and it is extremely slow at it too. But apparently it's better than anything out there. Dark Shikari (x264 developer) says [1]:
> I’ve seen that one before; iirc, last I tested it, it was competitive with x264 and even beat it significantly at times. Given that it was adapted for insanely high compression times, of course, this is not very surprising. Still rather impressive.
However, I know of one program that does in fact meet its claims: DLI Image Compression (https://sites.google.com/site/dlimagecomp/)
It only compresses images, and it is extremely slow at it too. But apparently it's better than anything out there. Dark Shikari (x264 developer) says [1]:
> I’ve seen that one before; iirc, last I tested it, it was competitive with x264 and even beat it significantly at times. Given that it was adapted for insanely high compression times, of course, this is not very surprising. Still rather impressive.
[1] http://x264dev.multimedia.cx/archives/541