what is the difference between dvd and dvd-9?

Question

i bought a dvd the other day and of course i have to test it first before paying it. when the staff played it there was a subtitle but when i brought it home and played it in our dvd player the subtitles iwasn't showing. i've checked the settings of the player and there was no problem so i was wondering. would it be because we're using just a dvd player instead of an enhanced one like the dvd 9 that has more features.

Answer 1

DVD-5 holds 4.7GB and is supported by the DVD+R/RW and DVD-R/RW formats. It is also known as Single-Sided Single Layer.

DVD-10 holds 8.75GB and is supported by the DVD+R/RW and DVD-R/RW formats. It is also known as Double-Sided Single Layer.

DVD-9 holds 8.5GB and is supported by the DVD+R and DVD-R formats. It is also known as Single-Sided Double Layer (sometimes called Dual Layer). The official names are DVD-R DL and DVD+R DL

You must have a DVD Burner for your PC that will burn Double Layer and/or Double-Sided DVDs to use these different discs.

Answer 2

DVD-RW: DVD-R is short for DVD-recordable. (Note the dash before the R; it's pretty important.) Like your old friend the CD-R disc, a DVD-R disc can be recorded only once. However, the DVD-R can hold a whopping 4.7GB per side of the disc, for a total of 9.4GB of data on a double-sided disc. DVD-R is the darling of the video-editing crowd, because it allows you to record a disc that you can use in a standard DVD player. Naturally, the DVDs that you create with a DVD-R drive can't be read on a standard CD-ROM drive (but you can burn regular CD-R and CD-RW discs). On the rewritable side, the DVD-R disc format is called DVD-RW. These discs can also store 4.7GB, and you format them much like you format a CD-RW disc. Any DVD-ROM drive should be able to read a DVD-RW disc. Unfortunately, not all DVD players can read DVD-RWs, so if you're an up-and-coming Hollywood type that's interested in producing your own movie discs, you should stick with the DVD-R standard (which is compatible with all DVD players). DVD+R/W: The other independent DVD standard, DVD+R/W, is widely available as well. This more recent format is being touted by an entirely different group of computer hardware manufacturers. DVD+R discs and DVD+RW discs can store 4.7GB, and a DVD-ROM player can read both types of discs. Again, however, you run into the same problem - DVD+R discs are compatible with most DVD players, but DVD+RW discs aren't widely supported by DVD players. Plus, DVD-R/W and DVD+R/W are incompatible

Answer 3

Each DVD movie has multiple "versions".

The original, plus versions with subtitles, audio comments, etc.
Go to the DVD-disc menu (under options or setup) and select that you actually want to see subtitles.
There is a single DVD standard and all movies should play to all players