I once bought an Everly Brothers Greatest Hits Long Playing record album and didn't know till much later they were all re-recorded. "say - why does Bye Bye Love sound so much better on the radio???"
You know what Separation 2 reminds me of? Those couple of episodes of Rocket Robin Hood that they re-used for Spiderman, like this one:
I suppose I better get on with reading it so we can get Balls! sooner.