If you try exporting a track as an MP3 it won't let you. It'll offer to do it as an AAC which is what a streaming music file is. Needless to say, soundclick/dmusic/etc dosen't recognize or play this.

To fix it, you gotta go to "prefereces" then go it "importing" and turn the standard importing format to mp3. The new iTunes has a shitload of new featues to import/export and mp3 ain't the standard no more

Just keep ya noggin north.

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