Concerning Red Alert 2 expansion, Yuri's Revenge, it uses SD2 copy protection, however, after creating a working backup, I cannot network the game on my 2 pc's; it looks at the s/n and doesn't allow it. Is this legal? Am I supposed to pay ANOTHER 30 USD before my wife and I can play this game? I purchased the CD solely for that purpose. Other games, for instance Total Annihilation Kingdoms, allows you to play as many LAN games as you want from a single CD. In fact, as long as you select the network option and not the single player, you don't even need the CD in the drive. I'm thinking there's a massive amount of greed taking place here.