I have the collectors edition, which includes AOE 1/2 and the expansions. I was having troubles with this game, as it kept asking for the CD, when the DVD was in the drive. This was because I applied a patch downloaded off the original site, thinking I needed to make sure it was up to date. Well, as the story goes, the readme.txt on the DVD tells you NOT to do that, and that all the latest patches are already applied, and the ones on the website are not compatible with the DVD version.