multiple external harddrives

Hi.....

I have a large collection of DVDs that I have ripped to two 2 TB harddrive.....

so my question is can I connect two 2 TB harddrives through a USB hub to the USB port on the ATV and be able to access them in nitoTV????

Or do I have to network them in to the ATV via my PC????

Yes a USB can be used to connect multiple USB drives.

If the drives are self-powered (no external power supply) you will want to use a powered USB hub.