I keep getting the message that my 'media format is not supported' when I try to put one of my MP3's as my alarm sound on my Motorola EM330 phone. I had the same MP3 as my alarm on this model phone until I replaced the phone. The MP3 plays fine in other parts of the phone, so I know it's not my MP3. Some work, some don't. It's not a size issue as the one that works is larger than the one I'm trying to use. Last time I changed a setting to get it to work, but I can't remember what I did. Has anyone else experienced this and solved the problem? I spoke with my carrier and they weren't able to find a solution.