[ This tutorial ] is wonderful which was very helpful! Knowing how much we, fangirls, would like to have our own Arashi ringtones. It's very easy to do. You just need to have the time to play with since it's knowing when to start and stop. And remember, the maximum time for a ring tone is 30 seconds. There is one for android, but since I don't have one, I can't test it out. ^^; Sorry.
I was able to make some ring tones while playing around and will make more when I find more songs to choose. It's best choosing instrumentals unless you want the vocals. Here are some of the tunes that I played around with.
Arashi folder: MEGA
Tunes: 愛を歌おう, Face Down (opening), Face Down (rap part), GUTS!, 誰も知らない, Bittersweet, Intergalactic, 虹, Hit the Floor, sugar and salt, Take Me Faraway (music box), two (music box), 夜空への手紙
You have to manually click all the songs to have it import to your TUNES folder and not to your music folder to make this work.
Windows users: You don't need to delete the ringtone 'song' from your music library within iTunes for this to work, but you should do so as a housekeeping task. If you leave it there, it won't play, since you changed the filename that the 'song' linked to (in the previous step).
Mac users: Lots of people have commented saying that in the latest iTunes, the ringtones simply won't show up in the Tones section. There are two things to try here:
1- Delete the ringtone 'song' entry in your iTunes Music library (don't delete the actual file on your hard drive - choose to keep it when prompted). Then double-click on the .m4r file in Finder and it should show up in Tones.
Some of the songs were ripped from YT for their karaoke music. Rest are from the singles that I have. I will create more in the future.