 The primary technical difference is a lower (horizontal) video resolution of 352×480 (NTSC) or 352×576 (PAL/SECAM).Because 352×480/576 is a recognized DVD resolution, CVD video (but not audio) is fully compatible with the DVD-Video standard, and avoids the "foldover" (or aliasing) problems encountered when playing SVCDs on DVD players.The lower resolution also allows the bitrate to be reduced while keeping compression artifacts to a minimum.