Razr V9m changes ringtones by itself

I have the Motorola razr V9m, and it changes ring tones BY ITSELF
What is going on? I have a ring tone named "salim.mp3" and whenever i se it as the default tone for calls and messages ant alarms, it always changes by itself to either nothing, or the "alert" ring tone.

Help?

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the ringtone probably isn't a supported format. To high of a bitrate or channels.