The sims 3 installation problem

[Taeish]

I dont have any expension pack installed yet, yes, i have installers downloaded from origin, but not the game themselves. Now, I'm trying to install base game, The Sims 3, right? so i press install. it says i need to insert correct disc now. What is this magic. I just downloaded it straight from origin xPPP

any way to avoid this problem?

[rumbutter]

see if this link can help http://sims3.crinrict.com/en/2013/10/download-version-asks-for-dvd.html