Hi, I am a freelance camera/film-maker. A job I did recently had some corruption of the files (I did not do the copy but it has got me thinking I need to find most robust way of copying off camera cards). Not sure where it came from but a friend told me an interesting story.
He was doing DIT for a project and being over paranoid he did 2 copies using totally different drives/card readers. It turns out it was a good thing. The copy they were using in the edit had corrupted footage. He got the backup to him and tested his hardware. Turned out it was one of the card readers that was introducing the corruption not it turns out he was not being over paranoid.
So I to be extra careful I want to do a byte compare after the copy (i.e. check the two files contain exactly the same data on a byte by bit, byte by bit, basis). What software is there that can do this. Be good if it was not too expensive, preferably open source. A simple byte compare utility would be good (did some googling but no joy). Alternatively a suite of utilities that does the copy and compare, and possibly maintain database (but I guess this is specialist software that may not be cheap).
PS I realise doing a byte compare is not instead of using two sets of hardware, it is a extra check.
Edited by Ben Edwards, 03 July 2015 - 08:26 AM.