I want to put Ubuntu on my laptop, which will work alongside Win7 Pro. I know I want to use the 64bit version of Ubuntu, but here's my question: The end of the downloaded file is "...-amd64.iso", this is what downloads when I click on the disk image button in the Ubuntu site, however, the laptop is a Intel Core i5. Is this the right download? If not, where is the right one???

Thanks for any info.