The internal hard drive on the Vault should be visible as a network drive on a PC so you can copy files from it with a file manager program. However the Node does not provide internal storage so you can't copy 3000 ripped CDs to a Node. You should be able to copy some of the rips onto a USB flash drive which you can connect to the Node and access them, but am not sure whether it will support connection of a full size external hard drive.