The present disclosure includes a system and method for a serialized data service. The film comprises an odor barrier layer of an amorphous polyamide resin blended with an anhydride-modified olefinic polymer or copolymer. The string construction eliminates the need for string sets to be shared with adjacent keys so that tuning or breakage of a string only affects a single key as opposed to adjacent keys. Each customer has a cable modem, DSL modem or a gateway which interfaces multiple signal sources to a LAN to which settop decoders, digital phones, personal computers, digital FAX machines, video cameras, digital VCRs etc.