Dropbox upload tricks
Dropbox upload tricks
Out of context: Reply #4
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- ernexbcn0
"The files are analyzed before the upload and if the same file was already uploaded before, by you or another person, then the file will not be uploaded again. This happens for popular files all the time, like movies, mp3 and so on.
Dropbox will chop the files in 1MB chunks and will take the checksum of each part, compare it and will then decided if the upload was already done before. That is what you can read in other post. It will compare with all the files in the whole Dropboxes which increases the chance that the file was already uploaded before."