Burning movies on cd?

I came across an ad on Ebay today that claims to show you how to burn movies unto “cd’s”, is this really possible? If so, how can this be done please? Reason I’m asking is, I am not a movie buff but I am thinking of purchasing a DVD burner to tranfer my movies that I have on VHS unto DVD’s and also copy 2 or more movies that I have on DVD unto a single DVD but if all of this can be done on cd then I won’t have to but any further equipment.

They will try to sell you stuff you can for free also.

You can compress a DVD so that it will fit on a CD (VCD/Divx), but you will lose quality of it. I’d check out this section if I were you: http://club.cdfreaks.com/forumdisplay.php?f=66