Installing some software last night the installation DVD was not readable; other DVDs are readable, that one ... not. I tried several times. No dice. That same DVD is readable by a different 'puter. So I shared the drive and installed the software. Any idea why one, of the many I have, was/is not readable? I can't even open it via MicroSauce Windoze Exploiter. The 'puter "thinks" for a while then insists I insert a DVD.