How-to backup your media from iTunes 5 or 6
Apple has updated their Knowledge Base article covering how to backup your media (including videos and podcasts) from iTunes 5 and 6. They explain how to backup your entire library, and mention the fact that iTunes can get smart if your collection is too large for one CD or DVD – it'll automatically burn across multiple discs. They also explain how to use Smart Playlists to only backup portions of your library, such as music purchased from the iTMS, although you can simply click on the "Purchased Music" section of your library that's already in iTunes to burn up that music. I also dig that they link to another handy article that explains how to use a Smart Playlist to make incremental backups of your library. That way you're not wasting time and discs re-burning all of your media every time you make a backup. Smart.