is the difference between a DVD-5, DVD-9 and DVD-10?
What is a dual-layer disc?
DVDs come in different sizes. The numbers relate roughly
to the amount of storage space they have, in GB.
- DVD-5 Holds approximately 90 mins of high-quality
video & audio (4.7 GB)
- DVD-9 This is a "dual-layer" disc, and
can hold about 3 hours of material (8.5 GB)
- DVD-10 This is a double-sided disc, and can hold
up to 4 hours. (9.4 GB)
- DVD-9 tends to be more popular than DVD-10, partly
because a DVD-10 requires the viewer to turn the disc
over, and also because since both sides of a DVD-10
are played, they can't have artwork printed on the
All the timings above are guidelines only. If you need
several different audio tracks, for example, there may
be less space for video. However sometimes it is possible
reduce the data-rate of the video to "squeeze"
more onto the disc. Depending on the type of material,
this may reduce the picture quality, however. We'll
always be happy to provide you with a free assessment
of which size of disc will be best for your particualr
Dual-layer (DVD-9) discs can hold almost twice as much
information as single layer (DVD-5) discs. As the name
suggests, the data is split across two "layers".
The player's laser refocuses to change layers half way
through. This point is knowm as the "layer-break",
and depending where it is placed, there may be a brief
pause in the video playback as a result.