The Command and Conquer

hi i am david , my question or request is obviously in the wrong place but i didnt know where else to ask this, so please bear with me here.

i am a huge fan of the command and conquer games from command and conquer generals and zero hour especially, like the tibirum games too but generals and zero hour are the favs. i have seen many different versions with different armys and generals on utube and i love them all(well the english speaking ones as i can only understand and speak english myself) sorry crappy grammar i know...i know there are websites that allow you to do modifications to these games but in order to play different mods you must uninstall and reinstall its all just too hard. when im sure some of these games i see on utube are sold on disc. so i can play on my windows desk top pc. how do i find and get them i would not mind paying new prices for them all , one by one  that is . but id love to own them all if possible i can play this game endlessly even when i have played every senario and won every battle i just gotta start again its just so addictive can you help me .... [edit: email address removed]

David A.Clutterbuck

Perth Western Australia