Mac not pickup up 1.5TB External Hard Drive!

So i just bought this external hard drive so i can put my videos on it and not have them all on my normal hard drive. Didnt see it said i had to reformat for Mac. So i plugged it into my mac, went to Disk Utility and its not there!

can someone help me?

I don’t know about the Mac part but don’t trust important data to just one drive. The board is full of people who did what you want to then had a problem with drive and are crying about loosing it all. One copy is not a backup.