Originally Posted by Gudy
It works just the same on the V3.
Disclaimer: I've never seen the V3 firmware, so the last paragraph is pure speculation on my part. Renaming cbr files to rar should make it possible to use them on the V3, though.
I've tested this no my V3 and the reader does open the Rar files and allows us to browse inside its directory structure. After opening a image file inside the rar, the next page button will skip to next image, just like a comic book reader would do.
Unfortunately this is still not enough, since after closing the rar it won't remember the last image viewed. Forcing us to navigate again the directory structure and finding the right image. Besides, the image rendering engine is not quite good, even for black and white images.