Subset of DVD specs, even though normally term "DVD" refers to this particular format.

DVD-Video is a standard developed by DVD Forum and specifies how video should be stored on optical DVD disc. DVD-Video specs allow two different kind of video encoding algorithms to be used: MPEG-2 and MPEG-1. Virtually all DVD-Video discs use MPEG-2 format, mostly because of its superiority over MPEG-1 in terms of video quality.

Resolutions that video streams can use, are:

720x480 (NTSC, only with MPEG-2)
720x576 (PAL, only with MPEG-2) 
704x480 (NTSC, only with MPEG-2) 
704x576 (PAL, only with MPEG-2) 
352x480 (NTSC, MPEG-2 & MPEG-1) 
352x576 (PAL, MPEG-2 & MPEG-1)
 352x240 (NTSC, MPEG-2 & MPEG-1)
 352x288 (PAL, MPEG-2 & MPEG-1