i wouldn't send a usb stick, they probably will not get it, accept it or even look at it..
1,400 pages - again i would be surprised if they will take it, i would send a sample from say each week or month, couple of 100 pages at most.
but others will tell you what they sent, caz i had 3yrs of chat logs and it was many 1000s of pages double sided print with like 75 lines a page and my misses didn't even hand them in to the embassy
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