Can I use a NAS?
Can I use a NAS to store my audiofiles? Yes, you can but you have to pay attention in naming the shares.
Create a share, named C and copy your data to that share or a subfolder.
To connect Radiohost to this share, copy a radiohostmodule to the share and connect Broadcast (and all other modules) to this module. Please, pay attention to give this module the correct name.