It doesn't need to be factory installed. Just install the drive internally and set the jumpers to Master. If you have room in your case to keep the older optical drive change the jumpers on it to slave. Eric >>> tom.kirshbaum at nau.edu 01/30/03 04:00PM >>> Jim, > iDVD 3 requires an internal, factory-installed SuperDrive DVD burner. It > won't work with any external DVD burners. Did you mean "Factory installed?" it won't work with a 105 installed in an older machine??? How can that be? ---------- <http://www.themacintoshguy.com/lists/MacDV.html>. Send a message to <MacDV-DIGEST at themacintoshguy.com> to switch to the digest version. XRouter | Share your DSL or cable modem between multiple computers! Dr. Bott | Now $139.99 <http://www.drbott.com/prod/xrouter.html> Cyberian | Support this list when you buy at Outpost.com! Outpost | http://www.themacintoshguy.com/outpost.shtml MacResQ Specials: LaCie SCSI CDR From $99! PowerBook 3400/200 Only $879! Norton AntiVirus 6 Only $19! We Stock PARTS! <http://www.macresq.com>