So I went into my brothers room today and his girlfriend had left design high tech stuff on the floor, so I grabbed it to quickly install but it won't.
I put the disc in and the Launcher Pops up (and says unable to connect to the EA download manager - as always because I don't have it installed) but the game won't install, I tried gonig to my computer and rightclicking the disc to autoplay but that won't work either. Its just.. nothing. Nothing happens at all.. But it obviously recognises its a sims disc because the launcher opens. Do I need to get the download manager or something?

EDIT: Just saw that it doesn't even have the little symbol for this stuff pack along the bottom... what is going on??!
HELP!! D:

EDIT 2: Okay, so I ejected the disc ready to restart my computer when I see that this is just the basegame disc in the wrong case. I'm an idiot. Case closed. Mods can delete this now Haha ;p (I hate people who don't put discs in the right cases!! ahh!)