Wow, how generous
"The MPAA Members are sympathetic to legitimate users who may have relied on Megaupload to store their legitimately acquired or created data"
Gosh, that is *so* very generous of them. To actually consider graciously permitting innocent parties to access their own entirely legitimate data!
"If files are going to be handed back, then the MPAA needs to be sure that none of the material infringes copyright"
Why? It's their own data, it's none of the MPAA's business what it is. If they want to inspect it then they should show probable cause to a judge and get a warrant. And they can either get third parties to inspect it, or accept full liability if they are ever found to have later published something which might have been copied from that data. For instance suppose someone has a story idea in that data? If the MPAA seize and inspect that data then they had better never create anything based on that idea, whether or not they actually copied from it.