SONY RMTD128A DVD Remote Control is guaranteed to work with the following DVD Player models:

Originally supplied with DVD Player models: SONY DVDPNS500V, SONY DVPN5400D, SONY DVPN650V, SONY DVPNS4, SONY DVPNS400, SONY DVPNS400D, SONY HT5100D,

Compatible with DVD Player models: SONY DVPNC550V, SONY DVPNC6, SONY DVPNC650, SONY DVPNC650V, SONY dvpnc650vs, SONY DVPNS650V, SONY RMTD133A,