The codes for a Symphonic combination DVD and VCR are 456 and 458 227. These codes, which are factory standard in most major market electronic devices, allow users to program universal remotes and other radio-based devices to interact with Symphonic players.
Codes are typically three digits in length, but some have additional confirmation digits or else several alternate codes within a single brand. This allows users to program several different devices of the same brand within the same physical space.
There are codes available for cable boxes, digital video recorders, TV/DVD combination players and a wide variety of other devices. Most can be programmed to work with a remote.