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Mobile content delivery startup Myxer

has officially delivered over 10 million free ringtones to iPhone users.Myxer allows users to download ringtone in two ways. First, Myxer’s free ringtone podcasts

allows any iTunes user to pull ringtones directly from the channel. And the startup has a standalone site that gives users the ability to download from a catalog of more than two million ringtones and sync them to the device from their PC.

The easier of the two options is surprisingly subscribing to the podcast. Being subscribed means that iTunes will check for new files as they become available, allowing users to get Myxer ringtones directly from iTunes and on their mobile phone every time they sync. Two new ringtones are added each week.

In addition to ringtones, Myxer offers over 2 million free ad-supported ringtones, wallpapers and videos and currently counts more than 27 million users. Users can also make their own ringtones, videos and wallpaper from music and files a customer already owns. Competitors include mSpot,

Playphone

and SendMe.

Create free ringtones for your iPhone using only iTunes and songs you already have on your computer (This method only works with songs that are DRM free. To create ringtones using DRM protected songs please use this method). This method has been tested and works with iTunes 7.7.1 and iPhone 2.0.1 firmware.

To create custom ringtones using only iTunes:

1. Right click on the song you are going to make into a ringer and select “Get Info.”
2. Go to the options tab and go down to the “Start Time” and “Stop Time” check boxes. Check both boxes and input the time you want your ringer to start/stop. The ringer has to be 30 seconds or less. Click OK when you’re done.
3. Right click on your newly “clipped” song and select “Convert Selection to AAC.” The song will be re-encoded using the start and stop times determined (If your menu item does not read “Convert Selection to AAC” and reads “Convert Slection to MP3″ (or some other format) please go to iTunes > Preferences > Advanced > Importing and change the “Import Using” drop down menu to “AAC Encoder”).

After the song is done encoding navigate to your iTunes Music folder, locate your song, and drag it to your desktop. After the song is on your desktop go back to iTunes and delete the clipped version from you iTunes library (It won’t delete it from your desktop, it will only remove it from iTunes).

Go back the song on your desktop and right click on your song and chose “Get info.” Go to the name and extension section and change the extension from .m4a to .m4r (or you can just change the extension right from your desktop)

After the extension is changed simply double click on the file to add it to your iTunes library under the ringtones section. Sync your phone with iTunes and you’re done!

Remember to go back into iTunes and uncheck your custom start and stop times for the original version of your song.

I have had a lot of fun with this. A lot of fun!