Since nobody writes anything I am going to write a response. One possible way of doing it is by
going to Site administration >> Plugins >> Activity modules >> SCORM package
and enabling "Enable external package type".
Then unpack the scorm module we want to use in a folder located at the server as a repository. Then when we want to use it in a course we select External Scorm Manifest as the scorm type, and type the url of the imsmanifest.xml of that scorm at the repository folder. It works and stores the student current status without any problem.
But... this is not a safe method because any user or program could download the scorm contents and use them. If we use a filter to allow request to the repository folder which have for example moodleX in the HTTP_REFERER, this is not safe because any user can say that was the url that redirected him to our page.
Any other idea?
Thanks in advance.