When I place a dvd-rw disc in the drive I am unable to copy to it. When checking properties box it shows no free space and no used space. Have been trying to find the problem for two weeks without success. I am able to copy to my flash drive without any difficulty. The drive is a writer and had been working very well until two weeks ago. I am running Windows XP Home I can write to cd-r/dvd+-r 1 optical drive The software is Sonic, the drive is two years old. Help woud be very much appreciated.