VOB files usually exist on DVD discs, or are downloaded from movie sharing sites. As this kind of video file usually contains one or several audio tracks and subtitle tracks that are multiplexed together into one stream form, it is not so easy to playback directly on PC or Mac. That's why you find out that all VOB files in the Video_TS folder are just grayed out when you try to import VOB to Pinnacle Studio for editing. To edit VOB files in Pinnacle Studio (no matter Pinnacle Studio 18, 17.5, 17, 16, 15 or other verison), you have to convert VOB files to Pinnacle friendly format first. Pinnacle Studio work with AVI , WMV files perfectly. To get the work done, you can turn to Dimo Video Converter Ultimate to convert VOB to Pinnacle Studio supported AVI or MPG first. Overall, it's the optimal VOB converter for you, which can help you decode the VOB files when converting into a different, and ideally more edit friendly, compression format like AVI. So you can edit