俺看报纸，当初主管磁带的那哥们说，“保存历史”不是工程师的事。 他的解释是： 那些数量庞大的磁带，只是“数据带”，记录了各种各样的工程数据（不是一般意义上的“录像带”）。 在70-80年代，“数据带”中的一部分（20万盘），被抹掉重新使用了，其中就有45盘，记录首次登月实况的“历史”带子。
当初电视台直播的，只是对着控制大厅里的投影墙“实况翻拍”的影像，所以视频质量低劣。
NASA花了20多万美元，让好莱坞一家专业公司重新加工了现在能找到的电视台播出录像。
有个细节比较有趣，阿姆斯特朗第一步踏上月球后，吓了一跳，又高高地缩回到了登月梯子上。
（所以这哥们朗诵“这是人类的一大步”时候，实际已经是第2第3步了。。。）。
看看这里
http://www.nasa.gov/multimedia/nasatv/on_demand_video.html?param=http://anon.nasa-global.edgesuite.net/anon.nasa-global/ccvideos/GSFC_20090716FINAL_OneSmallStep.asx&_id=200630&_title=One%20Small%20Step%2C%20One%20Giant%20Leap&_tnimage=368939main_One_Small_Step_Comparison_100.jpg#The original videos beamed to Earth were stored on giant reels of
tape that each contained 15 minutes of video, along with other data
from the moon. In the 1970s and '80s, NASA had a shortage of the tapes,
so it erased about 200,000 of them and reused them.
How did NASA end up looking like a bumbling husband taping over his wedding video with the Super Bowl?
Nafzger,
who was in charge of the live TV recordings back in the Apollo years,
said they were mostly thought of as data tapes. It wasn't his job to
preserve history, he said, just to make sure the footage worked. In
retrospect, he said he wished NASA hadn't reused the tapes.
照片里的，就是 Apollo 11 宇航员 Buzz Aldrin，首次登月的2人之一， 这几天忙得很。
