Fullbuild1 file is missing - Sims 3

Hello, I have followed every step to download, but when it asks for Disk
1, it asks for a disk with fullbuild1, but when I try to open disk 1,
it says that the file wasn't found on it. I looked through the , and it
really isn't there. Any help?

iirc it's in disc 2... i'll check mine and update.

nvm. my ts3 files are gone. someone deleted my iso files for everything before showtime >:/

Hello, I followed the steps of the video but once I get to 1:56 (in the video), it shows me the two screen caps. I have tried redoing it many times, but the file fullbuild1 is missing from the CD1 I have mounted.

No, I hadn't used WinRAR at first, but I just did this time and it is now asking for Sunset Valley instead with the same error saying that the disk doesn't have the file once I click on it..

//EDIT

Seems like I got it to work. I played with a few things. I'll let you know if it doesn't work out.