installation hangs!!

Hi, I downloaded suse 10.0 RC1 and I tried to installed on my PC but the installer hangs in creating initrd step and couldn't finish installation then I reinstall my suse 9.3 again. to recover my computer. another failure occured in installation is libxml.. I am sure to correctness of cd but not about its download. because I download iso files on a laptop then I copied those files through network to my desktop computer which doesn't have connection to internet. what is the problem? -- Mohammad do you Python?!!