Filesystem_patriot

hi all..

i wanted to implement some alerts in an application i was making.I want to access the BB ringtones and play a tune from there. We have methods for that

Audio.playFile(Audio.AUDIO_CODEC_MP3,File.FILESYST EM_PATRIOT ,"store/home/user/ringtones/Notifier_BikeBell.mp3" );

however, this File.FILESYSTEM_PATRIOT is giving me a problem,as it throws UnsupportedOperationException -if an unsupported file system identifier is passed in parameter .

As of this date, only one value has been defined: ie. FILESYSTEM_PATRIOT

So has any1 used this value..n throw some light on wt culd be the problem..
Suggestions pls ppl.....

Thanks.....