What is the difference between a DVD 5, DVD 9 & DVD 10

[myoka]

anybody plz tell me~

[soup]

http://www.timefordvd.com/glossary/GlossaryD.shtml

DVD-5: refers a DVD that is single-sided and single-layered, which holds up to two hours of video and audio (i.e., 4.7 GBytes of data).

DVD-9: refers a DVD that is single-sided and dual-layered, which holds up to four hours of video and audio (i.e., 8.5 GBytes of data), without having to manually "flip" the disc.

DVD-10: refers a DVD that is double-sided and single-layered, which holds up to four hours of video and audio (i.e., 9.4 GBytes of data). However, since there are two sides, you have to manually "flip" the disc with most DVD players. This construction is usually used to put a 16x9 widescreen version on one side and a full-frame version on the opposite side. So depending on which aspect ratio you want to view, you put the disc in with that aspect ratio's label facing up (and in this case you don't have to "flip" the disc).

DVD-14: refers a DVD that is double-sided. The first side is dual-layered, while the second side is single-layered. This disc holds up to six hours of video and audio (i.e., 13.2 GBytes of data). This format can hold the 16x9 widescreen version of a movie and its bonus materials on the first side, and a full-frame version of the movie on the second side. So depending on which aspect ratio you want to view, you put the disc in with that aspect ratio's label facing up. To view the bonus materials, you would have to "flip" the disc if you were watching the full screen version of the movie.

DVD-18: refers a DVD that is double-sided and dual-layered, which holds up to eight hours of video and audio (i.e., 17.0 GBytes of data). If there is different material on each side of the disc, you will have to manually "flip" the disc with most DVD players. To date, DVD-18 are still rare since few DVD production lines are able to accommodate this type of DVD. Some DVD-18 were produced for the "Terminator 2: Judgment Day (Ultimate Edition)" DVD. (To meet the tremendous demand for this title, some packages feature two DVD-9 discs).

[change9]

http://dvr.about.com/od/dvdrecordableformats/f/faq5.htm

the website can answer your question