If you are a fan of digital products you may have such difficulties: You download/copy some videos/DVD you like and put them on your iPod/PSP/iPhone/Zune/Mobile phone but they can’t play or have a poor quality of speed and image. In fact some digital products can only supported some certain formats. So we should convert our videos to the formats compatible with our digital products. I find many companies produced such converters such as Cucusoft, Avexsoft , 4media , iSkysoft , Movarisoft and so on they can transfer between almost any formats. I am sure with them you can enjoy Videos/Movies/TV/DVD on your any digital products.
I hope it can be helpful to you.