Do you have an iPod? Do you use iTunes?
You are not alone. Over 100 million iPod users use iTunes to manage their video and audio media files. It is a good media manager.
However, iPod is not the only device you use. You have cell phones, and probably not iPhones, and most of the newer cell phones can play video and audio. You may have some other portable players, like Archos or Sansa.
So, you have a problem managing your media library. Yes, you can get all of them into iTunes with some good conversion software, and for that purpose, we would like to recommend our Crazi Video. However, you probably don't want to maintain multiple media libraries, each for a different cell phone or portable player model.
This is why we made ShadowTunes. Use iTunes, sync to everything.
You select which iTunes playlist you want to sync, and click the "Sync" button. All we require is that you have the device connected to the PC as an USB storage device. We copy the files if the file format is compatible, or convert it if necessary. We place the files in their correct location. Everything is done automatically.