Written by What’s VOB file?
VOB (Video Object) is the container format in DVD-Video media. VOB can contain digital video, digital audio, subtitles, DVD menus and navigation contents multiplexed together into a stream form. Files in VOB format may be encrypted. Files in VOB format have a .vob filename extension and are typically stored in the VIDEO_TS directory at the root of a DVD.
Analogous to the MPEG program stream, a VOB file can contain H.262/MPEG-2 Part 2 or MPEG-1 Part 2 video, MPEG-1 Audio Layer II or MPEG-2 Audio Layer II audio, but usage of these compression formats in a VOB file has some restrictions in comparison to the MPEG program stream. In addition, VOB can contain Linear PCM, AC-3 or DTS audio and subpictures (subtitles). VOB files cannot contain AAC audio (MPEG-2 Part 7), MPEG-4 compression formats and others, which are allowed in the MPEG program stream standard
Common VOB Converting Question
"I have used dvd decrypter to copy a few movies to vob files but am wanting to converge into one avi file of a GOOD QUALITY! does anyone have any ideas?" – Yahoo Answers
"What is a good trusted program that will convert a .VOB file to a mp4. When I open the .VOB file in my windows 10 it just players audio through windows media player but when I open it in VLC player it shows video." – from Tomsguide
"Can anybody recommend the best free software I can use to convert my VOB files to AVI instead. I have come across a few "free" ones, only to then find I can only convert 20% of my file as I then need to pay to get a full service." – PC Advisor
Above questions are very common, especially to DVD owners. It is easy to realize VOB to AVI/MP4/MOV/MKV/WMV/M4V conversion, on the condition that you get the right programs. And this article will recommend the best VOB converter. Before any further, this post will stretch the necessity of converting VOB to other more compatible video format.
2018 Best VOB Converter – Pavtube Video Converter Ultimate | for Mac
To get a perfect VOB converter is not easy, but you are in the right place. I will share my favorite desktop VOB converting program with you which is called – Pavtube Video Converter Ultimate with specific tutorials. This software stands out from its competitors which will never let you down. It allows you to convert VOB to MKV, MP4, AVI, FLV, WMV, MOV, M4V, MP3, FLAC, AAC, WAV, as you like. This converter also works as a VOB compressor, you also can reduce video resolution, bitrate to shrink VOB video size. If you want lossless video quality, splitting feature is also supported. Moreover, you can split VOB file by time, length and time. Other features like trim and crop are offered, too.
Step by step to convert VOB to MP4/AVI/M4V/MOV/MKV etc
Step 1. Load VOB videos
Launch the program and start importing your VOB files by dragging and dropping or you can load VOB by clicking "Load Files". Batch conversion is also available here.
Step 2: Output video format according to your need
In its video formats window, you can be surprised by its luxriant options. It offers massive video formats for you. MOV, MKV, M4V, AVI, MKV, MP4…all those are available here. Apart from video formats, you also can see dozens of optimized device presets in the list, scroll down or up to browse all options, there is always one for you.
Step 3. Compress VOB file
Option 1. Adjust VOB parameters to reduce video size
Open the "Video Profile" window, this software enables you to change video size(resolution) to reduce file size. Normally, video size ia based more on bit rate than video resolution, to get smaller video file size by lowering the video bit rate.
Option 2. Split large VOB size into several parts
By clicking the "Split" button 
on file list, or from “Edit” menu, you can launch the “Video Split” window. Checking “Enable” to enable it, and then you can split the file by file count, time length, or file size.
Step 4. Start the VOB conversion
After you have done all settings, return to the UI and press Convert, wait for a while, open the output folder to get the generated files. Now you are able to transfer the covnerted file to any device for enjoyment on the move.