I have a XILLI SOFT 3GP converter but is it not good. It does not convert movies upto the mark. Suggest me some other converters which can efficiently convert all the movies with a very good conversion result........

Try Video Cleaner Pro, you have to buy it tho, since it's not for free.

are you using the converter to make 3gp movies, or changing 3gp's into something else? This is the converter I use, and I always get good quality. If you aren't converting a clean file, the end result will be subpar.
Pam

there are many 3GP video converters out there. to choose the best proper one for you ,you should do some comparison work before you buy .so google for it

Freeware iWisoft Free Video Converter is what i'm using, with very good results. It is free with no embedded watermarks or ads. better than most paid programs

try leawo free 3gp converter, it is free and easy to use.