I think you can choose a movie collector or dvd library,depending on your interest. I haven't had an experience like this,because i always use this Mac Video Converter
to convert all my video files so that i can play them on my portable players.Maybe you can try this method!
Mac VOB Converter is one of the most powerful video converters for Mac users. Mac VOB Converter can help you easily convert VOB files to any other video format as you want.
I use Movienizer, it's a freeware and has many interesting features. After entering a movie name it downloads all info on it from different on line databases and has several searching options within catalog. It also has a built in player so you can watch movies directly from the program.