CBR, but I believe it'll happen with CBZs as well. This is pretty common, really. Evince used to do this before as well, 'til escaped '?', '|', '[', ']', '*', and '\' characters. The in this instance archive itself doesn't contain any of these characters, but the filename does. However, if something as simple as the filename will segfault the app, I'm worred that it'll segfault if the archive contains files with these characters as well. Here's an archive that it'll segfault on: http://www.mangashare.com/dl/Claymore_83/4028/