I have noticed when I put the best bits together from my DVD disc onto a new dvd disc and therefore create multiple titles which I then merge as one using relevant software (done on my computer), when I play the end result on the Sony machine it pauses at the point where the titles were joined then will only start to play again after some time but audio falls behind out of sync. If I push stop and play again, it start up from the point stopped and plays in sync until the next title join where it pauses and starts again after a while. The dvd disc plays without any pause in the computer drive and on my brother's basic Sony dvd player. Is this a problem with just my machine or all Sony RDR-HX900 dvd recorders?