This dialog is displayed when the working thread finds that there is a file in the destination location that is greater or equal in size to file being copied. If the files are identical - you should ignore. But if they differs you should recopy.

• Recopy - recopies the whole file from the beginning
• Recopy all - like the above, but does the 'Recopy' for all subsequent situations, where the destination file is greater or equal in size to source one.
• Ignore - ignores this info, and skips the file.
• Ignore all - like the above button, but also ignores the next infos of this type.
• Cancel - cancels the task.