NOTE: No Plugin requires download access to open video and audio files that cannot be played in the browser, and notification access to show download notifications.



it says that you have to download something in order for it to work. NO! I am NOT wasting my time downloading something. the summary said that you can play video extensions IN YOUR BROWSER! disappointed in you. please respond.

I couldn't even figure out what to do with it ! I did an extension search for "Real Media" after failing repeatedly to open a really old .rpm file from NPR.ORG , and this showed up. Of course it failed miserably.
(And yes... real player had some sort of obscure streaming protocol in .rpm extention overlapping with the other much more known .rpm Red-hat Package Manage file extension).


UPDATE:

The page with the link to that URI is: https://www.npr.org/templates/story/story.php?storyId=1072668 and the Real Media .rpm it points to is https://www.npr.org/templates/dmg/dmg_rpm.rpm?id=72668&type=1&mtype=RAM&orgId=1&p=2&story=1072668&siteplayer=true

There is some hilarious discussion on https://customer.real.com/hc/it/community/posts/360014557914-Can-t-play-RPM-file-from-NPR?mobile_site=true where an oficial Real Player representative doesn't even recognise they even had the extention , saying that .rpm is package management extension.

Turns out the actual .rpm is only a text file that points to realstream .rm/ram, and their RealServer infrastructure is probably long gone.
Then, there is also this interesting info from NPR: https://help.npr.org/customer/portal/articles/2086406-how-can-i-listen-to-older-npr-audio-that-displays-a-real-media-option-

Really underrated