This tag can be used with a number of additional parameters:
specifies the backup compression level. Can be None, Normal, High, Maximum.
specifies whether you need to create an incremental image file. If equal to ”false” (or “0”), a complete image file will be created. If there is already a file with the specified name, it will be replaced without warnings. If equal to “true” (or “1”) and there is already a file with the specified name, an incremental image will be created. Otherwise the program will create a complete image file. The default value for this parameter is “true”.
adds a description to an image file. The comment must be a single string (though its length is not limited.)
splits a large image file into a number of smaller files of the specified size, which can be provided in bytes, kilobytes, megabytes, etc.
adds password protection to an image file.