You need to tell us what market you are authoring for. If you are authoring for Hollywood, then Scenarist will allow you to put in what I call "traps" to prevent illicit copying. It will also allow multiple audio tracks, multiple subpicture streams (subtitles), multiple angles and closed captioning. However, Scenarist has a very steep learning curve, and a very poorly written manual. On the other hand, if you are authoring for people who want to convert wedding videos, etc. to DVD, then a lesser capable authoring program would be in order. Do you need subtitles? Scenarist and DVDMaestro are some of your choices. Do you need .AC3 sound? Scenarist, DVDMaestro, DVDit PE, Spruceup (although no longer sold) are some of your choices. Do you need CLOSED CAPTIONING? Scenarist and DVDMaestro are some (only?) of your choices. Do you need multiple audio tracks? Scenarist and DVDMaestro are again your main choices. Do you want audio in your menus? Scenarist, DVDMaestro and DVDit PE are some of your choices. Do you want motion menus? Scenarist and DVDMaestro are again your main choices. These are the programs that I am familiar with, and is definitely not all inclusive. I like Spruceup, because of its ease of use - but, I do not use it any more, because it does not have audio in menus. Today, I use DVDMaestro, because it does every thing that I want to put in my DVD's (motion menues, audio in menus, CLOSED CAPTIONING and subtitles). Soooo, let us know what your target market is and maybe we can offer some good (well, at least "free") advice.