A hologram message originating from Greef Karga was played by Carson Teva using a viewer.
The viewer served as a portable device, designed for the purpose of reading and playing hologram messages that were stored on datacards. During the time of the New Republic Era, Captain Carson Teva obtained a viewer, on loan from a Snivvian bartender, in order to access a datacard that came from High Magistrate Greef Karga.
