The word had always been that they ditched Donnington 2007 because there were so many flags in the crowd and they obscured the cameras.
I've always been a little sceptical of this and here's why....
Maiden would surely have been aware of the amount of flags that might turn up at Donnington. They would have known how to film around them or simply chose another gig to film. There were lots of flags in 1992.
I reckon the recordings/performances and/or crowd reaction weren't good enough. The AMOLAD songs were tricky enough in terms of timings and I reckon Steve just didn't think it was good enough for release. Or he didn't dig the setlist enough. Either way, I don't buy the flags thing. If the flag thing is actually true then it seems quite short sighted.
I've heard the same thing, but I don't remember where for the first time. I also seem to remember there was an episode of someone tossing eggs on Bruce in reference to Eggfest, maybe that also has something to do with it.