  We establish a mapping between a continuous variable (CV) quantum system and
a discrete quantum system of arbitrary dimension. This opens up the general
possibility to perform any quantum information task with a CV system as if it
were a discrete system of arbitrary dimension. The Einstein-Podolsky-Rosen
state is mapped onto the maximally entangled state in any finite dimensional
Hilbert space and thus can be considered as a universal resource of
entanglement. As an explicit example of the formalism a two-mode CV entangled
state is mapped onto a two-qutrit entangled state.
