So I have a dead HD on the iBook. I have this Vaio we make fun off at home. (joke). The Vaio's memory slot has given up the ghost, so I take out my iBook out the closet and swipe the dust off it, and open it up because the vaio has voluntarily chosen to donate it's HD to my iBook. By the way, iBook is dual USB 500 mhz. I know I know, it's old, but still very usable and still holding it's value!! So I did the swap, stuck in a Panther disk, and nothing. Hold down C, nothing happens. So I take my MacBook, put a Tiger disk in that one, boot it up in Target Disk mode, (don't we all miss those days....), and hook it up to the iBook via fire wire. So now I boot up iBook holding C, and now the iBook boots up without flashing ? mark folder icon. So I am presented with the installation screen. I go for the Install but the internal HD from the iBook does not show up as an optional destination. So I open up disk uttility, and the drive does not show up there either. So that's where I am at right now. I don't know if I had to format the drive BEFORE i placed it in the iBook but I thought to mysef..."Self, isn't that what Disk Utility is for?". Another thing I wanted to ad is that I don't believe that the internal cd drive is being recognized as well, because the first install I attempted was a Panther install, which comes in CD. So that's why I choose the Target disk mode route with Tiger instead. The drive is a Toshiba and it came off a Sony Vaio GRX series or something..(man, their naming scheme needs some work!!!). The drive was good as far as I know. And please, save the "just buy another one" comments. I wil revive and use and enjoy and gift as many old and new macs as I possibly can and I do... so just some help please.