this stream was the problem. because when i saved it as a playlist the player often say file not found. now i hav saved it normal only 1 stream and now it's good. still don't know how it's possible that i can't save it as a playlist but it's just fine for me now.
Well in Juno records you could hear 1-Minute samples of any song of almost any artist with PSP Radio but they killed the Classic version so now it's rendered ineffective.
You should (KK), remove that feature in the next update (seeing that it don't works ).