In my house, I have three Apple computers. Only one has an internal DVD drive. The iMac has an external DVD burner, and the B&W G3 has its original CD-ROM. While perusing Tiger's system requirements, I noticed that though the site says that Tiger comes on a DVD, the requirements do not include "DVD drive". I found that this is because Tiger is available on a CD, and you have to order the CDs for 10 bucks after you've purchased Tiger. Here's the problem: you aren't just getting CDs, you're mailing your DVD to them and getting CDs back. What if I want the DVD and the CDs? Do I have to buy Tiger again? Or buy a family pack? Can I get the DVD back if I need it again?