Apple DVD Studio Pro 4 - Manual (Page 37)

• What should the remote control’s Menu button do: It’s worth planning what should
happen with all of the remote control buttons, but especially the Menu button because
its action can vary from element to element.
These and many other decisions need to be made. Drawing them out as a storyboard
before starting the project can help eliminate errors or delays while waiting for a decision
to be made.
Designing the Menus and Buttons
DVD Studio Pro provides tools that make it easy to create menus without relying heavily
on outside graphics applications. For simple titles whose main focus is to provide
information, you may be able to rely on the basic button-and-text capability of
DVD Studio Pro to create your menus.
For custom titles, you’ll need to create your own graphics. Creating graphics for use with
video is a bit different from creating graphics for print. Be sure to see
Creating Graphics
to Use in Menus for information on creating graphics for your title.
In either case, because menus and the buttons on them are the viewers’ primary way of
interacting with your title, it is important to spend time making sure that they are
straightforward, with logical button navigation and clear highlights that let viewers know
where they are in the menu.
Making Sure Your Content Will Fit
Be sure to allow time in the planning process to determine whether all of your assets will
fit on the type of DVD you are using. You don’t want to be surprised when you are finished
authoring the title—that is a bad time to find out that the assets won’t fit.
What Do You Mean a 4.7 GB DVD Won’t Hold 4.7 Gigabytes?
With computers, memory and disk size are commonly expressed in terms such as kilobyte,
megabyte, and gigabyte. Technically, a kilobyte should represent 1000 bytes, but due to
the binary numbering system computers use, a kilobyte actually represents 1024 bytes.
Similarly, a megabyte represents 1,048,576 bytes (and not 1,000,000 bytes) and a gigabyte
represents 1,073,741,824 bytes (and not 1,000,000,000 bytes).
Unfortunately, with DVD discs the terms megabyte and gigabyte do not use the same
binary-based standard; they literally refer to the technically accurate 1,000,000 bytes for
a megabyte and 1,000,000,000 bytes for a gigabyte. This means that a 4.7 GB DVD disc
will actually hold only 4.37 binary-based gigabytes. While the difference is not large
(relatively speaking), it must be accounted for if you intend to come close to filling the
disc.
37 Chapter 2 Planning Your Project