And now the competitor - very interesting result: 1) blMilWom.obj: RAR: 740k (91% of ZIP, 103% of SIT) 2) blMilWom.rsr: RAR: 824k (79% of ZIP, 97% of SIT) 3) Victoria.cr2: RAR: 524k (77% of ZIP, 111% of SIT) 4) Poser.exe: RAR: 1219k (89% of ZIP, 97% of SIT) Obviously, RAR is much better than ZIP, and even an itsy bitsy better with "uncompressable" binary files - two times 97% of SIT in 2) and 4). Nevertheless, it is already weaker with 1) and seriously weaker with the text file in 3). I must also confess that I still stick to StuffIt 5.5, the latest 6 claims to be better/smaller again. So I still would say: if you want to compress for free and like to have everyone (typically) decode without a new tool, stick to any freeware zipper. If you want smallest file sizes and accept that your PC users need to download a new (free) tool, pay for StuffIt.