i can't post my pics (need to modify them before), however its optical because if you see 300 GB in your inventory, you will not have all of them, just some.. for exemple:
I had 266 gb and after restart i see in my inventory 20 gb, you can try on the server i've linked, its working trust me ;)
caesar
EDIT: Added some screenies at second post!
ps. sorry for double posting, wasn't in my intention, i thought i was modifying it.