My Samsung SN324F combo in my laptop stopped reading any discs (cd, dvd, cdrom) after I ripped several cds and copied them to my MP3 player (creative zen nomad). It just makes that "cheezik" sound over and over again, no "whirrr". The troubleshooter says it's working properly and reinstalling the driver had no effect nor did restoring the computer to before I installed the MP3 player stuff. Any ideas? or does it sound broke?