VOB

Files in VOB format have a .vob filename extension and are typically stored in the VIDEO_TS directory at the root of a DVD.The VOB format is based on the MPEG program stream format, but with additional limitations and specifications in the private streams.The MPEG program stream has provisions for non-standard data (as used in VOB files) in the form of so-called private streams. VOB files are a very strict subset of the MPEG program stream standard.

- - Wikimedia

3GP

3GP stands for 3rd Generation Partnership Project. The 3GP file format is a multimedia container format that is often used for 3G-enabled cellular phones. The 3GP file format is a mobile-friendly version of the "bulkier" MP4 files that are popular for use with desktop and laptop computers. The 3GP format was developed to make file sizes smaller so that they would use less bandwidth, making it easier to stream video and music onto mobile phones.

- - Wikimedia

Step-By-Step to Convert VOB to 3GP for Mac

Interface

Step 1. Download and install the program, then double click it to run it, and then you'll see the main interface of the program.

Load Files

Step 2. Click "Add File(s)" button. Here you can select "Add Video" or "Add Folder" button to add files as you like.

Profile

Step 3. Click the drop-down arrow right beside the "Profile" column and select your desired video format from the drop-down list.

Edit

Step 4. Click "Edit" button to customize the output video like Effect, Trim, Crop, 3D Settings and Watermark.

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