Old 770x Thinkpad DVD problem

I have an old 770x IBM Thinkpad with an original DVD-rom(Toshiba SD-C2002). My problem is I inadvertantly removed/deleted the DVD driver, so the drive will still play audio CD's & cd-rom's(just not DVD's). The real problem is I bought this computer used last year & have no software. I did purchase what was supossed to be a CD of drivers for the thinkpads off eBay, but I can't seem to find the driver.(if it's on there at all) Please help!!

Thanks for listening, Vinnie B.

Software and drivers are different.

You need to buy powerdvd/windvd or give www.videolan.org a whirl for free.