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When I add a torrent the program works fine but after a few minutes it increases the value of total size. Right now I am downloading a torrent of size 5.08 GB, but the program detects it as 5.45 GB.

What may cause that kind of problem and how do I check whether files downloaded correctly?

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I have the same problem I am downloading path of exile torrent and the file is 4.26GB(not GiB) as shown everywhere but the the status is showing that 5.03 GB(not GiB) is already downloaded and only 50% is downloaded yet and it still keeps downloading??!!! Weird never had this problem before. – user274930 Apr 27 '14 at 11:47
up vote 3 down vote accepted

Are you sure the unit is the same? Maybe Transmissions is not using GiB units?

It happens, that 5.45 GB = 5.08 GiB <--- Note the "i".

The difference between GB (gigabytes) and GiB (gibibytes) is that GB are based on power of 10, and GiB are based on power of 2.

1 GB  = 1000 MB
1 GiB = 1024 MiB

and, subsequently

1 MB  = 1000 kB
1 MiB = 1024 kiB

GiB is not a SI unit, though SI standard recommends to use it for data size. There is a short article and there is a detailed explanation of this idea:

Note that 5.45 GB = 5450000000 B = 5.08 GiB, so if Transmission uses GB instead of GiB, then everything is okay ;)

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Yes, I haven't noticed that in torrent description GiB used, but Transmission uses GB. Thanks a lot! – int-index May 6 '12 at 10:08

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