My understanding is that there were 347,000 individual pages. Still a huge number of documents overall but not 347,000 documents. Likewise, sometimes it said that there are 4 million documents involved in the case; I guess that means 4 million pages.
I do know that Essex Police supplied the pages completely in random order with multiple copies of the same witness statements, often with different dates on them, many undated and unsigned. It took 6 months just to put them in a sensible order. It then took years to work through them. Only then could a submission be made to the CCRC.
Let's assume pages rather than documents: 347,000 pages newly disclosed and 4,000,000 pages in total.
347,000 pages would be nearly 1,000 pages per day for a year or nearly 1,500 pages per working day for a year
4,000,000 pages would be nearly 11,000 pages per day for a year or nearly 17,500 pager per working day for a year
These figures seem to me to be impossible!
A bit like the number of witness statements that we are told Julie Mugford made. I have been told 25+ witness statements - roughly one witness statement per fortnight, running up to the trial!