Syberia: Having problems with a scratched CD

[Netslider]

Hi!
I got Syberia recently and I was loving it until my little brother scratched the first CD of the game.
Now the game crashes in some parts and because of that I tryed a full install with no success: while installing I get a message saying that the following files are corrupted:

...\Syberia\Video\Pack1\ab17080.syb
...\Syberia\Video\Pack1\ab17030-2.syb
...\Syberia\Video\Pack1\ab17030-3.syb
...\Syberia\Video\Pack1\ab17030-4.syb
...\Syberia\Video\Pack1\ab17070-1.syb

Is it possible for anyone to tell me where to get these files in order for the game not to crash?

I would be very thankful to anyone that could help me.