File copied over the network differs from original [migrated]

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http://serverfault.com – Having moved quite large amount of data (~1TB) over the network from one storage to another, I noticed the file on target system differs from the original. Setup: PC (Windows 7 64) with Windows Sharing -> 1000BaseT network 2x 1G switch -> PC (Windows XP) as Windows Sharing client or NAS with Windows Sharing (probably Samba?) -> 1000BaseT network 1x 1G switch -> PC (Windows 7 64) as Windows Sharing client Procedure: Copy from share with Total Commander - no error reported -> Synchronize dirs in Total Commanded (compare by content) - some files differ -> Total Commander's Diff (double click in (HowTos)