Need For Speed, The Thing I Want To Change

The Thing I Wanted Is:
1. Change soundtracks into my own favorite songs and play'em while I'm playing
-----> I somehow wanted to play a song from my VLC Player while I play Need For Speed but the problem was, I need to minimize the game when the song is done. And I didn't continued my stupidity on doing it again and again so I switched on another player so I can repeat the song while I'm playing.

But, there was another problem........
Whenever its been repeated, the game suddenly stops then it continues until I have crashed and got busted!
Even if I invented too much things on trying these, I did not succeed.