The mistakes that are on Champions Of The World are directly transfered from The Magic Years - DoRo were lazy and just duplicated a lot of the material to cash in on the release of Made In Heaven.
Neither are worth the money.
At somepoint a respected documentary maker will invest time time and effort (hopefully with the backing of QPLL) into making a definitive biography on the band.
The Who have recently enlisted Murray Lerner (he who complied Message To Love based on the 1970 Isle Of Wight Festival) to make a new DVD film/documentary with the help of the band, full access to the archives and contributions from fans (me - yee haaaaa!) to create a companion opiece to The Kids Are Alright.
Wouldn't it be good if QPL............?