One sided LP, commercials embedded in each segment.

From Westwood One's enclosed memo:
On September 20, 1983, rock history was made on the stage of London's Royal Albert Hall when an unprecedented gathering of British rock royalty took up ARMS (Action into Research for Multiple Sclerosis) against the crippling disease that had stricken on if its own, ex-Small Faces bass player, Ronnie Lane,
This weekend in coordination with the airing of The Ronnie Lane Benefit Concert, 10 short features have been produced updating the ARMS situation with interviews from Eric Clapton, producer Glyn Johns and the man of the hour himself, Ronnie Lane.
You are under no obligation to run these features, this is a Westwood One bonus that will help you build momentum for the airing of what Rolling Stone magazine called, The Concert of the Year.
Matrix / Runout: ARMS KM (Side One Runout - Etched)