How long should the export take, Compiling, Writing to cd-r/rw or dvd-r disc – Ulead 1.0 User Manual

Page 163: Writing a disc image

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SpruceUp User’s Guide

12—13

How Long Should the Export Take?

The amount of time required to export a project depends on a number of factors. This topic
breaks down each situation and provides some guidelines.

Compiling

As long as Source Type is set to Current Project, every export operation requires the title
to be compiled. The compile process creates the title set files for the Video_ts folder. The
largest amount of time is spent multiplexing ("muxing") the video and audio together.
There are a number of variables that determine how long the compile should take, but a
general rule is that it should take about 50% to 70% of the movie's play time. A one-hour
movie should take about 30 to 40 minutes. Complex titles (with lots of menus) or compiling
across a network will cause this to take longer.
One way to speed compiling up a bit is to have the movie assets on a physically different
drive than the one you are compiling to (not just a second partition of the same drive). This
avoids the situation of the compile forcing the drive heads to have to constantly jump from
the part it is reading to the part it is writing – it is best to have a different drive focused on
each function.

Writing to CD-R/RW or DVD-R Disc

Since little processing is occurring at this point in the export, the amount of time required to
write the Title Set to a CD-R/RW or DVD-R drive is dependent on the file sizes and the
speed of the drives involved.
For best results, avoid writing files across a network, and when writing to CD-R/RW and
DVD-R drives this is especially true. These drives require a smooth predictable data rate for
writing, and moderate to heavy traffic on a network can disrupt this, requiring you to set
the write speed lower than the maximum the drive supports.

Writing a Disc Image

Writing a Disc Image involves copying the Title Set files from the Working Directory to the
Output Destination. The file size and the speed of the drives are the primary factors
determining how long this will take.
Once again, this process can be sped up by having the Working Directory with the Title Set
files (to be read) on a different physical drive than the Output Destination drive (to be
written to). This avoids a situation where the drive heads must constantly be jumping from
the read files to the write file.

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