dvd problems

when i play dvd the sound pauses

it happens only with dvd cos when i play vcd the sound doesn't pause

i have _nec dvd +-rw nd 6650A

what can cause that?

Thank You

New members please enter the mothership lol

anyways we need more description like, where are you playing this movie ? from a dvd rom or dvd on your PC or which software are you using for the playback ?