Samsung HT-WP38 DVD Home Theater System with USB Plug-and-play and Wireless Rear Channel
Ignore Mr. Dey
He obviously doesn't know how DVDs work.  DVDs contain layers and if the content on a DVD is longer than what's on a layer, the laser must start reading from the new layer.  When it does this, there is usually an every so slight delay of video/audio.  Some players are better at \\"changing\\" layers than other but they all have that \\"skip\\" effect.