There are two standard DVD resolutions: 720 × 480 (NTSC, total 345,600 pixels) and 720 × 576 (PAL total 414,720 pixels), both available in 4:3 and 16:9 aspect ratios. 

If you would like to record to 1280x720 or higher, you need to burn to AVCHD or Blu ray disc.


For more information about DVD video, you could refer to https://en.wikipedia.org/wiki/DVD-Video.