With so many portable video devices emerging on the market these days, there's a growing question about intellectual property and whether or not it's appropriate to rip video to formats that will play on these devices. One question is, for example, is it appropriate for you to rip your DVDs to a format that will play on a portable video device such as the iPod or the PSP? The manufacturers who make these devices and the companies that own video content would much prefer that you never rip these movies into any other format. There's a profit motive behind that stance. They want you to buy every movie two, three or four times, once for every format. For example, you've probably purchased many videos in VHS format back in the days when VHS tapes were the only things available. You probably purchased some of those same movies again on DVD. So why do you have to buy the same movie twice?