(09-23-2011, 01:36 PM)Ultimecia Wrote: Windows can open .zip by default and any program can open .rar but it's not that easy to find .7z .Uh, not really. Loads of people use 7z. 7z is as good as or better than RAR as far as compression goes and you don't need paid software to create 7z archives; you do for RAR (at least, to my knowledge).
I don't see the argument for why 7z shouldn't be supported. It's one of the three main archive formats, and it's still quite common. I really doubt that allowing it through a system or simply editing the submission rules would take any longer than a few seconds.
I mean, I understand if you're trying to keep a consistent format, but you're not. If you said just ZIP, that'd be fine. But because you're supporting multiple formats, especially including one that requires additional software, I see no reason why it shouldn't be allowed.