Selecting media on android songbird library


I am a proud user of songbird, both on my laptop, both on my android and I sinchronized my laptop library using "folder sync" plugin to my android.

I have the newest version 1.54 on my android and I would like to exclude medias that do not come from my laptop library.
In other words, I have in my android library a lot of mobile tunes I use when someone calls and media I recorded with friends.
They are in different folders on mobile, but songbird shows me the same... how can I avoid it?

Further info:
android = Zte Blade running CM 7.1 stable and songbird 1.54
laptop = win7 ultimate x64 and latest pc songbird
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