Problems installing SH3

[Mr_b7]

I'm trying to install the new DVD of SH3 I just received but am unable to. For some reason the DVD cannot be read on my main PC but can on my worklaptop so I know the DVD is good. Other games work fine. If I try to browse the DVD I get an error "D:\ is not accessible. The request could not be performed because of an I/O device error." I've followed the instructions provided by Ubisoft to turn off all startup programs to eliminate software conflicts but that didn't help. My PC, although older, does meet the minimum requirements. Any suggestions?

Mainboard :ASUSTeK Computer INC. A7N8X2.0
Chipset :nVidia nForce2 Ultra 400
Processor :AMD Athlon XP @ 2005 MHz (this is actually 1.8 that is overclocked to 2.0 GHz)
Physical Memory :1024 MB (2 x 512 DDR-SDRAM PC2100 @ 133 MHz)
Video Card :ATI Technologies Inc Radeon X800 Series
DVD-Rom Recorder PLEXTOR DVDR PX-708A CDR, CDR-W, DVD-R (40x ) (40x )
Operating System :Microsoft Windows XP Professionnal 5.01.2600 Service Pack 2
Audio: SB Audigy 2ZS