For the moment I'm running OSX Panther 10.3.9 ....I have a "copy" of the Tiger DVD install disc.... I want to do an "Archive and install" conserving all my old app's and settings! but I'm not sure the disc will work and would hate to screw up my perefectly good Panther OS. Like freezing in the middle of an install. Any way to check out the Tiger DVD before trying to install. My system is G3 Pismo PPC 750 /500Mhz with 640Mo SDRAM and about 7GB free space on the HD. Thanks for any info.