3gp is a multimedia container format (simplifier version of the MP4), accommodating mobile phones. Most 3g capable mobile phones support recording of video in 3GP format.
With evolution of ringtone industry, many sites allow visitors to download music videos from the site directly to the visitors' mobile. By adding music of 3gp format to the site, mobile video sites open the possibility of downloading music videos and music clips to the mobile phones, without the need of further installations.
High-quality mobile videos on the persons' mobile allow watching the artists playing, singing and dancing, which only several years ago would be impossible. Free 3gp videos give the benefit to enjoy a variety of musical styles, watch favored artists on screen directly from mobile phone.
High-quality, easy-to-download, free 3gp videos are so popular, that within few hours of upload they are downloaded thousand times. More and more 3gp videos become available on mobile video sites, such as www.hooqs.com.