Can I make certain settings to improve the image quality of the output 3GP file?
The default settings which we offered for 3GP output are those requested by most of mobile phones. If you want to get better quality, please select “mpeg4” as video codec instead of “h.263”, as well as set a larger number for video bit rate and video size. They will produce a file with better quality but you must be sure that those settings can also work with your phone.