NsB

Hello I have a problem that annoys me. the majority of my music (cdlc P.psarc) which works very well so far has become unusable. I have an X that appears next to the music and I can no longer launch the music ... what's the problem? yesterday it worked very well. I formatted the pc so that I redo a good cleaning, I redid the manipulation to the letter to get the music (everything is fine) but my music downloads which worked yesterday are unusable .... help me please...