Not what either function does...
Auto Play - This determines if when you insert a CD/DVD/USB media whether it auto starts playing that media.
Auto Start Music - This determines if when you start Centrafuse it auto starts playing whatever media you were listening to when you closed the application such as Media, Radio, or XM.
If you click Media and have an old playlist loaded, it will always start playing it.
Neither of these features disables that.
A full manual that we have been working very hard on will be posted to the website this week.