I wanted to say that your links were very helpful. One of them said that the DVD drive CD might have a DVD Decoder software. Sure enough, I found deep into the EXTRA folder of the DVD a copy of PowerDVD. And PowerDVD is recommended by Msft to be use on XP. So it is win, win. I installed it and now can watch my DVDs at work <g>.
Thank you very much.
"The creative process is nothing but a series of crises." Isaac Bashevis Singer
"My experience is that as soon as people are old enough to know better, they don't know anything at all." Oscar Wilde
"If a nation values anything more than freedom, it will lose its freedom; and the irony of it is that if it is comfort or money that it values more, it will lose that too." W.Somerset Maugham