3GP is an abbreviation for 3GPP format and is a multimedia container that is largely used for recording videos on 3G mobile phones, but can also be supported by some 2G or 4G handsets.
Applications that enable 3GP creating will allow users to play their favorite videos on their mobile phones, while preserving the same quality of the original file.
The most common way of creating custom 3GP files is to encode other files to this format, using specialized multimedia converters.
Depending on the complexity of the utility, users will have the possibility to adjust the bit rate and sampling, or they will simply be required to specify the output location, without any further modification.