Not all just some of the burn disc i make don't read back in computer, movies only whole disc 8x or 4x makes no difference any suggestions?.
are you saying the movies you burn cant be read by your optical drive?
Set the booktype from DVD+R to DVD-ROM if the burner support this feature. Use quality media.
Talking about dvd-r
what software are you using to copy the DVD's?
Probably bad burn or crappy media.