Burnt panasonic dvd disc wont play on any other dvd player (Panasonic DVD recorder DMR-ES15 Silver)

[qanda]This thread is about the Panasonic DVD recorder DMR-ES15 Silver. Click here to see full specs[/qanda]i burn dvds on this panasonic dvd recorder but the discs donot play on any other dvd stand alone player. what is problem.