Ello sifu..i am just using iphone 3gs for a few day..i have made my own custom ringtone using itune, just 29 second & set it to m4r extention...The problem is, when i want to transfer that file using itune from itune ringtone folder to iphone ringtone folder, its say error..cannot copy...i just dunno what to do..could u all help me..

yup..i already used itunes...step by step until rename the file to .m4r...it appear in itunes folder but cannot copy it to iphone ringtone folder...normal mp3 file can be transfer to iphone without any problem..i did my survey in internet, alot of people had the same problem but nobody know what is the problem..is it itunes version problem?do i need to re jailbreak my phone 3gs again?