copying Dungeon Siege and XP Pro

[BigTy]

i have both of there titles and when it comes to making a first gen copy of DG it works fine but if i make a copy of a copy it errors out on about 36% of the instal.also the samething happens with XP pro even on the second Gen copy or back up. what settings are needed for these titles to work. and also what is the copy protection on theses disks. thanks for any help.