First of all with Drop Stuff, with its patented 24-bit image compression, has TIFF, PNG, GIF, and BMP compressors and you can compress files by to 98% of their original size (depending what they are). Squash and optimize MP3s, PDFs and images to save hard drive space and time when sending them over the Internet. Even JPEG photo files (an already compressed format) can be reduced up to a further 30%. Drop Stuff creates Stuffit, Zip and TAR archives--you just drop your files and folders on the appropriate icon on the super simple GUI. I liked the Stuff & Burn mode where it stuffs and sends the file to the MAC's CD/DVD burner in one operation. Sweet!

Expander now expands 7-Zip archives and segmented Zip archives along with files using any of 30 different compression formats--even encrypted Zip archives. I like browsing my archive of files without waiting for expansion using the Stuffit Archive Manager. You can preview thumbnails, add, delete and change files and save searches with Stuffit Collections.

Other cool features you get are: upload directly to FTP, MobileMe, iDisk or multiple CDs or DVD-ROMS, and restore files to original locations Stuffit is Finder-aware so you can preview compressed archives inside MAC's TimeMachine.