"Automatically select MP3 files at random and send them to your portable player."
When you have a lot of MP3 music, a doubt arises: how much of it will I copy to my portable player? And not just that, but also: which ones am I going to copy? Well, if you can`t decide, then the solution is Random Fill.
The way that Random Fill works is very simple: it just chooses, randomly, the MP3s to copy. You just tell it the folders that contain the MP3 files, and it will choose them without using any kind of criteria. This way, you will always be surprised at what you hear, as you won`t know the songs that have been chosen.
The Random Fill user can specify the total maximum size of all the selected MP3 files, so that they can be sure it will all fit in their player.