I formally had Kali 1.0 on an 8GB flash drive, and I could boot from it with no troubles. I decided to get with the times and download a newer version (2016.1-amd-64). I downloaded it from the kali.org site, verified the SHA1SUMS, and attempted to boot from it in my BIOS. It doesn't even recognize it. It's simply not there. When I had version 1.0, it would recognize my device as "Toshiba TransMemory". I can see the device when I plug it into my computer, but it just says "Kali Live", instead of "TransMemory 8GB". I'm also getting this error:

Error mounting /dev/sdb2 sdb2 is write-protected, mounting read-only mount: wrong fs type, bad option, bad superblock on /dev/sdb2, missing codepage or helper program, or other error

1) Yes, my BIOS is set to be able to boot from USB
2) No, I can't change the boot order, because it's not even there
3) I downloaded the 64 bit ISO, SHA1SUMS, and SHA1SUMS.gpg
4) Yes, I formatted to the correct drive (in my case /dev/sdb)

I am using Ubuntu 16.04 with an Asus Zenbook

Anyone know where I could have gone wrong? It worked perfectly the last time.