VOB files, known as DVD Video Object files contained in the VIDEO_TS file folder copied from a DVD disc, are the main contents of a DVD disc for they contain the actual video data. VOB is kind of popular file format for saving video data used in DVD, but DVD only. That means VOB is not commonly used either online or offline, while AVI is. Therefore, if you want to play VOB videos on the mainstream media products like PSP, XBOX 360, etc., you can change the video format from VOB to AVI.
To convert VOB to AVI perfectly and smoothly, you will need a professional Video Converter for Windows or Video Converter for Mac as an assistant. This VOB Converter for Mac/Windows is particularly developed for converting videos and audios from/to various video formats including VOB, AVI and more. By using this powerful software, the conversion will be perfectly done with quickness and effortlessness.
First download and set up the converter then follow the tutorial to learn how to convert .VOB files to .AVI on Mac/Windows Platform. Here we take conversion on Windows platform for example. If you are a Mac user, you can use the VOB to AVI Mac converter referring to the User Guide for Mac users.
For preparation, you need to transfer the VOB files from DVD to your computer beforehand. Thereafter, click "Add File" icon to locate the videos you want to convert.
Choose the AVI as the output format from the drop-down list of "Profile". If you need to transfer the converted videos to mobile devices, such as PS3, Xbox 360, Lumia 920, iPhone 4S/5, iPad mini, Galaxy S3/S2, etc. for playback, you can directly choose the corresponding device as the output format from the preset tab for those popular devices.
When you are satisfied with all the settings above, you can then hit the big "Start" button to begin converting VOB to AVI. After a moment, the conversion will be perfectly done, and then you can easily play the converted videos anywhere you like.