rocks not finding cdrom
 

i am installing the rocks cluster distribution in vmware workstation and at some point during the installation it fails to retrieve files from the cdrom because it's not detecting it. what do i do to make it detect the cdrom and have it install successfully

i am getting this image
http://img51.imageshack.us/img51/3599/screenshotuec.jpg

and when i press cancel a couple times i come to the screen where i get to select the media in which it was trying to retrieve the files from and when i select the cdrom option i get this message
http://img40.imageshack.us/img40/3248/screenshot3zg.jpg

heres the error message
http://img850.imageshack.us/img850/9...eenshot2ms.jpg