Denon DN-V210 Random Stops During Playback of Burnt DVDs

I love this DVD player, but when I have it hooked to my projector with the HDMI, occasionally during playback it stops on single frame and holds for 2-4 seconds, then continues like nothing happens. I would love to hear if anyone else has had this issue and knows why this is happening. This never seems to happen when I have the DVD playing out through the composite output....clueless!!! Please help!