I spent about 30 minutes reading through the posts below and found numerous others had the same problem I did.
I purchased a new Family Tree Maker's Family Archives disk and then downloaded the new family archive viewer (fav110.exe) to read it. My version of Family Tree Maker is not one of the new versions which will read the disk by itself. I downloaded and installed the viewer but it would not open the disk to read it. The instructions say to select "Family Finder" from the view menu. But that option was greyed out and unavailable on my version. I tried clicking on the icon with a magnifying glass and a disk to open it, but then I got an error message that told me to put the disk in the drive. The disk was already in my cd disk drive, but the program would not recognize it. I tried waiting and clicking on retry multiple times but the program would not read the cd.
Luckily, there is already a fix to this problem listed in the posts below, but I had to read quite a few of them to get the whole answer, so I will summarize again here for anyone else with this problem: (many thanks to HR Worthington for his many helpful answers to others')
The program wants to read from your D drive as the default, if your CD drive is not the D drive, the program thinks you haven't inserted the disk. The viewer program doesn't let you choose which drive to read from, you have to change the .ini file to tell it which one to read. - Open "My Computer" and find the letter next to the CD drive you want the program to read from. (It will probably be a E: or a G: or something like that. - Open the directory where you installed the family archive viewer files and find the files Ftw.exe and FTW.ini - Open the file FTW.ini by double clicking on it. (If your computer does not display file extensions, choose the one in all caps) It should open in notepad. - About 19 lines down, find the line that says ";FamFinderCD=X:" Delete the ; at the beginning of the line and change the X to whatever letter matches your cd drive letter. - Save and close the file and try opening the viewer again. You should hear the program access your cd drive and you should be able to read your information now.