CUSTOMIZED YOUR iPHONE RINGTONES FOR FREE

Have your customized iPhone ringtones for free!
The following method works for both windows and for Mac and it is fully legal.
All you need to do is that you make sure that you have your songs and
music to be non-DRM songs in your iTunes library. The method is easy and
for free and you can try it at your free time and save the money of
... buying ringtones.
A little bit of playing but legal playing and you will be able to have
any song as your ring tone. Note the different versions of iTunes and
the different issues concerning syncing problems and iPhone software versions.
Tools needed:
1) iTunes software.
2) Mac or Windows Computer.
3) Non-DRM Songs (Songs that you did not buy from the iTunes Store).

What you need to start the process is that you open iTunes, and find the song that you desire to make it as your ringtone.
Determine the part that you want to make as your ringtone by
listening to the song. Note down the start and the end time for the clip
you want.
Right click on the song and press “Get Info”. And on the options tab
type your start time in the text box next to “Start Time” in minutes:
seconds format, i.e. 1:00.
Do the same with the “Stop Time” box and in the same format. Make
sure that you do not exceed the 40 seconds limit for your ringtone.
Click ok, and right click on the song and select “Convert Selection
to AAC”. Wait for conversion and you will a duplicate file with the same
name of the converted song.
Click on “Keep Files” button and find the file you have converted in
the library that is shorter than the original one with the same file
name. Usually you will find it in the folder of “Music> iTunes>
iTunes Music>”.
The file will have the extension of .m4a and will have the same song
name that you converted from. Change the file extension to .m4r through
Right click on the file and choose rename. Or Right-Click and select
“Get-Info” on Mac.
Click yes on the warning message that you will see concerning
changing the extension of the file. Double click the converted file and
iTunes will automatically add it to your music library under the section
of Ringtones.
Connect your iPhone and sync all your ringtones. If under any
circumstances you find troubles syncing the ringtones then try changing
the extension back to .m4a and try syncing again and again till you get
it. Organize your folders that you do not delete any of your files so
that you can make a new folder and drag all your newly converted files
into that folder that you can add to your iTunes library. Leopard Mac
software may give you some troubles renaming files and you may not be
able to put your files in the ringtones section. This method is totally
legal and will not work with DRM files that you bought from iTunes
library so make sure to get the songs that you did not buy from iTunes
store.