3. 3 application formats can be combined in a single disc

A software title can offer a combination of all three application formats: DVD-Video, DVD-Audio and DVD-ROM.

Suppose, for example, that a disc is created which contains DVD-Video, and DVD-ROM high-resolution still images and computer graphics are added as an extra attraction.

The DVD-Video portion can be played back by a DVD player connected to a TV or by a PC equipped with a DVD-ROM drive and DVD board.

The DVD-ROM portion can be retrieved by a PC running Windows 95, Windows98 or Macintosh. Since DVD-ROM is computer data, it cannot be retrieved by a DVD-Video player.

But if the video played back by the program in the DVD-ROM is a DVD-Video file, this DVD-Video portion can be played back by a DVD player. This combination is possible because the DVD-Video is a PC file including video, audio, sub-picture and commands.

So, a DVD PC equipped with a DVD-ROM drive and a DVD board can play back both DVD-Video and DVD-ROM.