Left them in the folder to do mine. Worked fine. Just downloaded the zip and extracted on my computer then copied the resulting folder onto a 32gb micro sd (or thumb drive on the extension cable). It could read both as I have and tried both. Just follow the instruction document on the pioneer website step by step and it will be fine. Takes about 10-15 minutes in total. I did it with the engine running (stay in park) for fear of the stupid power save shutting off the stereo and screwing the update.