Apple's iTunes application is the gateway that millions of people use to watch video on their Macs, iPhones, or even on their televisions (with AppleTV). However, if your video was not purchased from the iTunes Store, getting it into iTunes (and subsequently) your other devices gets really complicated. iVI (pronounced "ivy") does one thing but it does that thing brilliantly. iVI makes adding your video files (movies, TV shows & Home Video) to your iTunes library as simple as "drag and drop".
