When I finish the first in a series or want to save graphic elements for future use, I save the project under a new name. Then I de-construct the project, deleting from the project all the assets that won't be used again in the future. I clean and organize the sequences and bins, then use Project Manager to create a new self contained "trimmed" project in a new folder. It is usually named something like "Project X TEMPLATE". The project Manager can copy all of the assets to the new Project X TEMPLATE folder.
So when it is time to do "Project X episode 2", I create a new folder for it, then open the "Project X TEMPLATE" and then immediately save the project as "Project X episode 2" in the "Project X episode 2" folder. That way the Template project is never changed, and each project going forward will be self contained in one folder that I can back up or deleted without fouling up any other projects.
It may also be a good idea to back up the whole""Project X Template" folder to a data disc, either DVD-R or Blu-ray.
You can also save some graphic sequences to an Uncompressed codec (with Alpha Channel if needed), or something like the Lagarith lossless codec, which can be downloaded for free.
That's awesome Stephen! will try that straight away and keep you posted.
Hello Stephen, just a quick note to say thanks again. Your answer was really spot-on!