How do I decode a 5-band blue resistor [duplicate]

I found a pile of these resistors, and I didn't know how to decode them using 4-band logic.

How do you know if it's to be read:

Brown(1), Black(0), Black(0), Black(0), Red(2) = 100Ohm

or:

Red(2), Black(0), Black(0), Black(0), Brown(1) = 200Ohm

Now before you get carried away, I hooked up a multimeter and I know that it is a 200Ohm resistor.

My question is, how would I be able to guarantee it is a 200Ohm resistor and not a 100Ohm resistor, using only the bands?

While looking for a picture to put with this post, it appears "grouping" plays a role on some 5-band resistors, but in this case there appears to be no grouping, but the red band is slightly thicker than the brown band. Is there a standard, or is this some form of tribal knowledge?