Simple Autostart Android App

I am looking for a program that will download a text file from the internet at certain intervals from my website. Inside this text file are 2 folder names. When I plug in a SD card (or external USB storage device) into my android box, the 2 folders corresponding to the names in the text file will be copied from the hard disk in the android box to the SD card. When plug in SD card, play a [login to view URL] file and when finished copying play another [login to view URL] file. If the files exist on the SD card, then no activity apart from playing message file. This is a proof of concept and if he app works as expected, there will be more work for the successful bidder. The device I am using is an Android box like this one [login to view URL]