DVD X Copy seems to work just fine making a 1 to 1 copy of a DVD regardless of the true size of the data or maximum stated capacity of the blank DVD.

The copy works fine on my laptop DVD player and on my $40 Mintek DVD player, but would not play on my Apex DVD player. The Apex is almost 4 years old though and maybe it just can't handle newer technology like DVD+RW. The Mintek was purchased around last Christmas.