I can burn DVDs fine but when I try and burn an audio CD (either from files on my hard drive or copy a CD in the other CD drive) the cd/dvd writer buffer does not fill, the writable CD-R keeps spinning but the burn does not progress screen does freezes at 5% (though nothing is actually burned). This has just happened this week after many months happy burning. I am using the same brand of discs and have just tried a different brand but no luck. Please help.