Rich Wrote: Thanks for the info. I found out that I was burning Mac OS extended CD-Rs and my power mac will only read Mac OS CD's. I burned a Mac OS C-R on Toast lite and the Power Mac read it fine. I have the power mac and the Duo connected via ethernet, but I still need to do a clean install on the Duos. I haven't checked out the USB drive since the nearest computer stores are Circuit City and Best Buy which are 40 minutes away and I am not sure they would carry them. I have a OS 8.0, but how I can use it on the power mac to install on the duo? Rich _______________________________________________ DuoList mailing list DuoList at listserver.themacintoshguy.com http://listserver.themacintoshguy.com/mailman/listinfo/duolist Rich, Remember, not all Duo's can do OS 8. Only the 280 and 2300, if memory serves, and only if they have enough memory. If you have a floppy drive for the Duo's on the dock, then looks for the Network Boot Disk on Gamba's site (search up gamba.) It will let you boot into a very basic version of OS 7.5.3. You can then format the hard drives in the Duo's and then copy the floppy's contents onto the Duo's hard drive. They will boot from that OS. If you have Tome viewer(easily found on the net, look at OS 9 Forever web page), you can then extract out extentions, control panels etc. on you power Mac to floppy's and copy them to the duo's system folder. This is a bit complicated, buy it works. And they need to be file from a version of OS 7. All this is barring your ability to connect an external cd drive to the Dock to facilitate an installation from a cd. Another option is to put the Duo's in the dock, (does it have a db25 scsi connector?) connect it to the scsi port on the ppc, start the ppc then start the duo in the dock and install the OS in what is called "target disk mode". It basically means that the ppc looks at the duo in the dock like an external hdd. By the way, if your ppc is a 6100, then it is a first generation ppc and is non pci. It's nubus and there is no such thing at this time as usb for nubus, though strangly there is a guy who has developed a card for the Apple II that has a USB port and also an adapter to read complact flash cards.