A VOB file is not only a MPEG movie, but has extra information in addition to the MPEG2 files within the container. This is partially because of the file system on the DVD disc. If you have ever browsed the content in a DVD, you'll see lots of IFO and BUP files. VOB files are just video, but DVD has other data besides video. So if you only renamed the VOB files, many video editing software titles can't recognize them or the VOB files can't be played.
Thus you need a VOB converter to convert VOB file to other video formats like WMV, MOV, AVI, FLV, MP4, MTS in need. There are two pieces of best VOB converter -- Video Converter for Mac and Video Converter for Windows, which can help to solve the format incompatibility problems with ease.
For those who want to convert video to VOB format for further DVD burning, you can choose the same VOB converter. It also extracts audio like MP3, WAV or M4A from VOB .
There are some situations you may encounter to use Video Converter for Mac or Windows to convert VOB files to other formats, and vice versa.
Convert VOB to WMV: You may need to convert VOB file to play them on Windows Media Player but find it get greyed out.
Convert VOB to MOV: Want to play VOB files on QuickTime or edit them on iMovie but find these two don't support VOB video format. Convert VOB to MOV to solve the format incompatibility problem.
Convert VOB to AVI: AVI is playable on most portable devices like Nokia, Xbox, Blackberry, PSP. You want to enjoy your VOB video on these portable devices but find it incompatible.
Convert VOB to MP4: You want to play VOB files on portable devices but find them incompatible with these devices.
Convert VOB to FLV: Need to share or upload VOB video on sharing websites like YouTube or Google. You should convert VOB to FLV since FLV is the supported format for this websites.
Convert VOB to MTS: Want to play videos in VOB format on digital photo frames such as on Sony, Canon, Panasonic but find them incompatible, so convert them to MTS.
Convert other video to VOB: You need to burn other video files including WMV, MOV, AVI, FLV, MP4, MTS into a DVD disc so that you can enjoy them on any DVD player or on TV. First convert them to VOB.
Here will give you the tutorials for performing VOB converter for Mac (Video Converter for Mac). As for Windows users, go to how to convert VOB in Windows 8/7/XP/Vista here with Video Converter.