I have spent ages searching but cannot find anything quite like my request:

I am about to embark on my first ZenCart project.

I am selling presentations streamed from a third party streaming server which are called from (not embedded in) a link in a page on my site.

So effectively I am selling a download file - the file being the page url.

These will be set to expire and download once only.

I think I should set these download links as Streaming not Redirect in order that the url of the file being download is not visible and thus prevent the page being seen again or passed on.

Is my thinking correct?

All advice gratefully received.