need some help about dvd-r 4.7gb :)

[otienki2]

ok i have a dvd-r writer and use a prog to make movie on 1 dvd burn it with record now max , i make a dvd data and put the 2 folders AUDIO_TS and VIDEO_TS . ( all *.vob *.ifo ...... )

it works fine in my tokai dvd player , works in home theatre (pioneer , panasonic , kenwood , thomson , )

but don't works in sony and philips and jvc ones.
can anyone help me and explain me why?

do i make something wrong or is it sony and philips that don't like dvd-r ?