For some reason, I can't get a CD to burn, using files from my computer, I can burn CDs by just putting one into the dvd drive and burning it to the disk in the RW drive, but just having a disk in the RW drive, then nothing, it wont play in my car, not on any stereos, it will play in some sort of program on this computer though. It used to not do that, it kind of came out of nowhere. anybody have any ideas?