Have a read of the FAQ - linked at the top. Tony has spent many hours updating and adding to it. Almost everything you ask is there:

e.g. type of disk:
http://www.riocar.org/modules.php?op=mod...;faqent=111#111

and a very detailed guide on how to install it:
http://www.riocar.org/modules.php?op=modload&name=Drive_Upgrade&file=index