I purchased the combined Photoshop Elements & Premier Elements 12 on same disc and have successfully installed and used the Photoshop Element. On attempting to install Premier I get error message :
"Error opening installation log file.Verify that the specific log file location exists and is writable"
Still error message occurs.
I'm not sure why your disk will not install correctly.
However,you can download Premiere Elements 12 from this Adobe Web Site.Download Adobe Premiere Elements 14, 13, 12, 11, 10
I would download it and and try installing it using that.