Thanks, I'm glad to heart that ! Zip, RAR, TAR + folders as "containers" and png, jpeg, bmp, gif, tiff and xpm should be supported as image formats. Container type is detected using magic numbers, images are identified based on extension (as there might be a few hundred of them in a container, so checking their magic numbers would be too slow). Support for more container & image formats can be added, if technically feasible. .