Stuge and SFBP,
Thanks to both of you for your help with this. It uses Windows 2000 (told you it was older lol) and the dvd rom drive is an external drive made by Sony for several models of Vaios that had no built-in cd or dvd drives of any kind. I bought it because I have some private info on that laptop and I need to run the Vaio's recovery cd before I can get rid of it and get myself a new computer because certain things are not able to be deleted from my hard drive due to some "stacked" error? I don't know what that means but it will not let me delete certain things so I'm gonna run the recovery cd. Problem was with this laptop, you MUST have either a compatible Sony cd-rom, cdrw, or dvd rom to run the recovery cd, a 3rd party cd-rom or otherwise will not work. So I bought it thinking it would be a piece of cake, then when I called Sony and the guy told me that the difference was that the Sony pcga dvd51 is an 8x speed drive while the pcga dvd51/a is a 4x speed drive, so he may or may not have been right about that. But the problem I run into is that since I need to run the recovery cd, from everything I've read online, once I run it I then have to re-install the drivers for it so that it will continue to run again and I was trying to find out which model it actually was before ordering the drivers disk from Sony. Thanks again.