How well dvd players recognize and play different consumer created dvds depends on the $$$ the manufacturer was willing to invest in the software and firmware of the unit and some old and respected Name Brands have been bought by companies that produces less capable devices.

The problem is not as bad as it was say five to seven years ago when many of the less capable players wouldn't play hardly ANY disc types except commercial movie dvd-roms. I would encounter Toshiba and Philips and others that just wouldn't support my dvd-r home grown material and new most all of them will.

Most often it ain't what you created it's just a cheap dvd player software/firmware not provisioned to support the type of dvd you have created.