OS X MP4 to VOB
Here we will recommend you an easy-to-use but powetful software for Mac OS X users that can help you convert MP4 to VOB with fast speed and high quality.
Introduction of MP4 to VOB Converter OS X
OS X MP4 to VOB is such a multi-functional software that can easily convert MP4 to VOB, AVI, WMV, DivX, MKV, RM, MOV, XviD, 3GP, etc. on Mac and it is also an audio converter for Mac.
Besides, Emicsoft MP4 Converter for Mac provides video editing functions like video cropping, movie trimming, and video effect adjustment (including resolution, bit rate, frame rate, etc.) and you can play the video when you want to edit it.

Note: System Requirement is Mac OS X v10.4 - 10.5.
Guide of how to convert MP4 to VOB OS X
Firstly: Download and install the MP4 to VOB Converter OS X.
* Step 1, Add resource MP4 files, batch conversion is supported. But 3-5 files will be OK for the stable and fast converting.

* Step 2 Output settings- under "Profile" option, choose the VOB format from the downlist; under "Destination", choose a folder to save the converted MP4 to VOB files on OS X.

* Step 3 Edit the input MP4 file- OS X mp4 to vob allows you crop, trim the video and adjust the effect ((including resolution, bit rate, frame rate, brightness, saturation, and sound channel, etc.). Here, we take Trim function as example.

* Step 4 After all the settings set well, just click the convert button, after a few minutes, you can get the perfectly converted vob videos.
If you want to convert MP4 to VOB OS X, don't miss this outstanding OS X MP4 to VOB Converter. Just download and have a try it by yourself.