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What’s a hybrid DVD?

Hybrid DVD is a kind of DVD disc that works in both DVD-Video players and DVD-ROM PCs and runs on both Windows and Mac OS operating systems.

It contains both DVD-Video and DVD-Audio content or SACD content. The SACD standard does not officially allow video, so it’s unclear what a given SACD player will do with a hybrid SACD+DVD-Video disc. Other variations of this hybrid would be a disc with both DVD-Audio and SACD content, or a disc with all three formats.

It is also a DVD-ROM or DVD-Video disc that contains Web content for connecting to the Internet, which have two layers, one that can be read in DVD players and one that can be read in CD players. (More accurately called a legacy or CD-compatible disc.) There are at least three variations of this hybrid, although most aren’t commercially available:
1. A 0.6-mm DVD substrate bonded to a CD+DVD hybrid substrate (#2 in this subsection). This disc would be readable by SACD and CD players on one side and by standard DVD players on the other (since most standard DVD players are confused by a hybrid disc with only a semitransparent layer).
2. A 0.6-mm CD substrate, with a special refractive coating that causes a 1.2 mm focal depth, bonded to the back of a 0.6 mm DVD substrate. One side can be read by CD players, the other side by DVD players.
3. A 0.6-mm CD substrate bonded to a semitransparent 0.6 mm DVD substrate. Both layers are read from the same side, with the CD player being required to read through the semitransparent DVD layer, causing problems with some CD players. The trick is to make the semitransparent layer “invisible” to 780-nm CD lasers. This is the format used for hybrid SACDs.
4. A 0.9- to 1.2-mm CD substrate bonded to the back of a 0.6 mm DVD substrate. One side can be read by CD players, the other side by DVD players. The resulting disc is 0.6 mm thicker than a standard CD or DVD, which can cause problems in players with tight tolerances, such as portables. Sonopress, the first company to announce this type, calls it DVDPlus. It’s colloquially known as a fat disc. There’s a variation in which an 8-cm data area is embedded in a 12-cm substrate so that a label can be printed on the outer ring.

A hybrid disc has two layers or two sections, one containing pressed (DVD-ROM) data and one containing rewritable (DVD-RAM or other) media for recording. It can also be a disc with two layers on one side and one layer on the other. It comes with an embedded memory chip for storing custom usage data and access codes.

As for language, it has a foreign language dubbed audio track and also has subtitles in that language.
Cite the source while copy: CloneDVD – DVD copy software .(http://www.clonedvd.net/blog/?p=612)

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