DVD is encoded with MEG-2,allowing both successive line scanning and jump line scanning,but is difficult to yield excellent TV signals even when successively line scanned,since DVD systems are usually designed according to jump line scanning.

• DVD是基于MEG-2编码的,容许逐行序列,也容许隔行序列,但一般DVD机和DVD光盘都是按隔行扫描设计和制作的,因此用逐行扫描也难以向电视输送良好的逐行扫描信号。