I'm in the process of doing dome research for an idea that I have and I was
wondering if I could get some insight as to whether Director would be the tool
to help realize this idea. What I would like to setup is a program that would
connect 3 to 5 separate QT video sequences and play them seamlessly as a
finished video. Everytime the video plays I would like those 3 to 5 sequences
to be played in random order, or selected based on metadata that I attribute to
each sequence.

I'm worried that Director would not be able to build smooth edits between the
clips. What if I had 25 sequences for example? Could it handle it?

I'm new to Director obviously so if you could point me to some good resources
to achieve this that would be great! I've been working with Flash and
programming now for many years, I'm just not familiar with the capabilities of
Director yet. Perhaps something like this has already been written and is
available as open source somewhere?

Thanks for the insight.

Director doesn't play video files. It provides an interface to any of a number
of video players through xtras. When you program Director to play, stop, etc,
you are creating a set of commands that will then be sent to the actual video
player. How well or poorly Director is able to pick up, import and begin to
play any one file after another file has played will depend on the player, the
computer, the video card, the available memory, the throughput of the bus that
the storage device that holds the video is sitting on, and a few other
variables.

It just might work.

Director can do this easily, or just as well as any other app.
The challenge will always be to avoid any 'blink' between videos. There are so
many variables at play here, it's not possible to make one receipe thay will
solve any situation, and not least: do not make this a problem even before it
has materialized; you might be lucky and avoid it at first attempt.
That said, among the numerous cheats that can be done to make a perfectly
smooth transition between videos is to fake the random choices and connect the
videos in your editing app instead. If your (the user's) choices are to connect
video A B and C in different ways, the combinations available are A B C, A C B,
B A C, B C A, C A B and C B A. This is six videos. It just could be the better
option to actually make these video combinations finished in your editing app,
and then choose the correctly assembled video in Director instead. This will be
much more video material for your app, but it could be the better choice still.
Just one tip - as mentioned there are numerous ways to accomplish this in
Director.