RAR is a general purpose archiving and compression program competing with/replacing programs such as PKZip, ARJ, and others. It offers significantly improved compression ratios, easier use and a cheaper price as well as supporting long file names, disk spanning, and self-extracting file creation.
You can also try RAR for Mac OS X, Linux, or FreeBSD.
Reviewing 3.91 Beta 1 (Nov 16, 2009)
#1 archiver, love it!
Changelog: http://www.rarlab.com/rarnew.htm
Reviewing 3.90 (Oct 10, 2009)
I prefer Winrar over 7zip. Its interface is 100x better, and can be customized. It uses 128bit AES encryption vs. the 256bit AES 7zip uses, however recently I read that the 128bit aes may be more secure than 256bit aes for some reason.
anyone tested 64bit vs 32bit speeds?