I found that Stuffit 5.5 will process a .sea archive, but doesn't recognise some .sit files that I have downloaded from sources recommended in this forum. I wonder if those downloaded files were made on a later version of Stuffit that is not compatible? Is Stuffit always backwards-compatible with older versions?
Luckily I have both SCSI and USB ZIP drives. I can download and expand files on a G4 iMac, save to the USB Zip drive, then move the Zip disk to the IIsi with it's SCSI Zip drive. I made the mistake of trying to download on a PC with internal zip drive, and it made the zip disk unreadable with 50Mb of software backups on it xx(
The IIsi is the best machine I have to make 800k disks, from downloaded images, for my Compact models. My Plus with superdrive and SCSI can also do it, but is slower and less convenient to use.
Rick