DVAC

Hey.. i'm new to the forum but would like say that i have no problem at all with my game, well atlest i don't think i have. but there are one thing i would like to know. Sometimes when i pause the game and goes back and forward in the menus the xbox makes some noices, almost like the disc is getting scraches in the console, but when ever i take it out and look if there are any its like brand new. nothing at all on the disc. its only the sound but it still got me a little worried. so if anybody els have this little "problem" plz let me know :D DVAC