I found a site that specializes in firmware update files and found the firmware for my DVD optical drives....waste of time...still get the CRC errors.
I went back and forth with the Witcher support team and explained what I have done to try to get the game to run. After going back and forth for two days they decided to give me a free download from GOG which I accepted and am downloading right now. It looks like it will take me at least two days to download the game. It is sliced into seven parts of which five parts are 2 gigs each. Each 2 gig part takes about 1.5 hours to download as they have their servers speed capped. I can understand why with the size of the games and the amount of people using the servers.
I have to say the Witcher 2 team was polite, quick replies, all they asked me to do is try their suggestions and finally gave me the GOG download for the inconvenience of trying to get the game to run and not being able to. So if you have problems with this game I would suggest you go through their support team, just be polite and explain your problem and you will get the help you need. I will buy their next game when it comes out because of the support they gave me.