Does the software requires you to insert the second CD while installing? (Just like in Visual Studio .net).
First try copying the CD with the Release.cab to the HDD and installing. If it asks for the location of the second CD, then choose your CDROM drive.
BTW, I just thought telling you to try UltraISO or WinISO to get an ISO image of the CD and mount the image by DAEMON Tools, then try.
Good Luck!
McoreD