You should create a folder with contains the player and one subfolder for each project. In this configuration, the player is loaded only once to play all the movies. Each time the user loads a movie, you avoid a 76 Ko transfert and several seconds of loading for the final user.

For example, on ECTI-home.net I made this for our tutorials :

I place all tutorials in the www.ecti-home.net/tuto folder

/tuto/player.dcr
/tuto/Project1/header.prt  -- general information about the project
/tuto/Project1/shotpart_xxxx.prt  -- all shot files of the project
/tuto/Project1/index.html  -- only if you need an external access to the project, if you want to place a movie in a CMS or a portal website, you should read the question "How to place a movie in my portal website, I don't use standard html pages ?" in this FAQ.
/tuto/Project2/header.prt
/tuto/Project2/shotpart_xxxx.prt
/tuto/Project2/index.html

Then in the javascript used to show the movie you can use :

-"/tuto/player.dcr" as parameter "source" the object
-"/tuto/project1" as parameter "sw2" of the object to indicate the movie to load