Problem with burning dvds to dvd-r format.

Im having problems with my final product when burning DVDs to DVD-Rs. I use mac the ripper, then dvd2onex, then toast 6 titanium. This works without a problem but when i begin to play the final dvd-r on my dvd player it skips and sometimes even pauses??? Does anyone know whats wrong with this or could it just be the blank dvds. I use teon and hypermedia blank dvds..... Any suggestions????