atvflash is that the same as regular jailbreaking?

ok, I’m confused.  I am used to Plex and decided to try this but I’m a bit confused.  I did the regular jailbreak using seasons pass.  I cannot tell if this jailbreak was successful for one. I’m pretty sure because now my verson of apple tv is 5.0.2

saying that, I’m trying to get my medial shared with my external drives and there does appear to be a way to do this.  Do I need to do this ATVflash thing? what is that, isn’t that just a fancy way to jailbreak using usb? Please explain, i’m already thinking about going back to plex.

never mind I went to youtube and found the answer.