Bombich Software recently updated its long-standing backup and disk cloning utility Carbon Copy Cloner with a slew of bug fixes and performance tweaks. The latest version, 3.3.2, incorporates 3.3.1's longer list of changes, which includes improved handling of mounting encrypted disk images, the addition of a detailed alert panel when deleting target volumes, easier access to documentation, better compatibility with the MacBook Air and Mac OS X 10.4 Tiger, improved handling of disk images appearing on network file systems, and minor usability enhancements. 3.3.2 also fixes an error with a localization in the Scheduled Tasks dialog, and resolves an issue preventing a scheduled task from mounting a disk image if its file was not located at the backup volume's root. A full list of changes is available on Bombich Software's Web site. ($10 suggested donation, free update, 3.2 MB)
Mac OS X Zip Expanding Utility
Firefox (and possibly other applications) may ask you what you want to do with .zip archives that you download from the Internet. If you want to expand them with Mac OS X (rather than StuffIt Expander), you may be unsure of which application actually does the job. You're looking for Archive Utility (in Leopard and later) or BOMArchiveHelper (in Tiger). In either case, the application is stored in Hard Drive/System/Library/Core Services/. Don't move it from there, though, or you'll confuse matters.