Install problem CD 2 - Pls help

Hi,

I have had to re format my system and when i went to re install Flight Sim X it gets right to the end of the last DVD and then says it cant read a file. Each time i install it seems to stop on a different file.

When i remove the DVD and re insert it goes a little further but then stops.

Does anyone know what i can do to get aroudn this? The DVD has only been used once before, so there arn't many marks/scratches.

Thanks all for your time

Darren

EDIT: the error code is 1305.