Here are links to SamuraiCast's review of the various boxsets. They were given review copies for the MMPR boxset and for the Zeo-Galaxy boxset separately. They both included bonus features for the purposes of review however this does not automatically mean that they'll include a Zeo-Galaxy boxset separately for retail purchase.
http://blog.samuraicast.com/mighty-m...ox-set-review/
http://blog.samuraicast.com/power-ra...ox-set-review/