Once I upgraded Popcorn to version 1.0.3--no earlier version will function properly if you have Tiger installed--I found the program useful and user friendly. Be aware that Popcorn will not copy DVDs that are copy-protected unless you use "ripping" software, such as Mac The Ripper, available as a free download. Also be aware that using ripping software could be in violation of copyright laws. With that said, even a newcomer to Macintosh like myself had little problem with Popcorn, once I had upgraded to the newest, Tiger-compatible version. If you buy Popcorn, be sure it is at least version 1.0.3, and don't let the vendor tell you you can update the program with a download patch, since this process can be problematic, although hardly impossible. Good luck!