Burning Dvd With Nxt 3, On Playback Disc Flickers Especially On Pan & Zoom Sideways in Disc Burning and Playback Issues Posted July 24, 2016 · Report reply PS: When rendering the video it is perfect. NOTE: Is it possible the DVDs are too old (Over one year old). If you mean it looks fine in the preview window as it's rendering, I'll suggest that that means almost nothing. Hopefully, you're rendering to either a folder set, or a .ISO file first, before writing your DVD? If so, you can preview your rendering before writing to a disc, that way you'll know if the problem is with the disc/burner, or with the rendering itself. My guess is that the problem is with the rendering, since the disc actually plays.