I could've sworn I just read...eh... Ed, Ed, Ed....look two posts up!

...Tartan's post.

Yes, the larger the image, the more layers, the longer the save time, because it breaks it into chunks and compresses them, which just takes time. It's not my compression routine, but it's what I have to rely on in the meantime. Also, the compression is lossless before you get all scared!

The data saved is quite extensive and covers more than your ordinary formats, of course. It's closer to an RLE format, fully layered, but there's even more than that, of course. Just be patient, please!
Other than that, please, let's not continue this conversation here. This thread is for graphic card reports!