It is rather good isn't it! The story I heard about this recording is that it was a backup copy that had recently been found. It was in quite a state, with the oxide layer almost a powder that was repidly disintigrating. There are bits missing altogether. For instance, Capcom 'copies' an alarm, yet Eagle doesn't call it. With a lot of messing about, they managed to save most of it. As far as I know, it's the only recording with both the flight loop and the capcom/LM loop. This is a pity, as it would be interesting to hear the Apollo 13 flight loop when the tank burst.