Can infuse read files from a Raspberry Pi device?

I want to buy a streaming unit for my DAC to play my CD rips, such as the unit below:

However, I would love if the attached USB Drive could also store video files that Infuse can see. Can anyone tell me if Infuse see this hard disk?

Talk to the manufacturers of the device and ask if they do SMB sharing.

Yes, you just have to set it up to do so.