Well, this is what happens. When you put a cd in it, it will run it (spin it) for about 10 secs. Then it will spin the cd then stop (I guess it could be coasting) every 5 secs. I tested this trying to form a CD image with Nero, and the read speed was changing from 32x to 4x every 5 secs. It's a Acer 40x CD-ROM and I am using drivers that came with XP. So do you think it's time for a new one?