iDVD creates standard DVDs. Standard DVDs use the MPEG-2 media compression standard. As for source files, iDVD is a QuickTime app. It should handle just about any source file for which you have a QuickTime codec. DVD standard pixel density is 720x480--either 720x480i or 720x480p. You source media should have a pixel density equal to or greater than 720x480.