/sys$common/syshlp/helplib.hlb CONVERT, file, Qualifiers, /READ_CHECK  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Specifies whether each input record is to be read from the file a
    second time and compared to the record originally read.

    Format

      /READ_CHECK

      /NOREAD_CHECK  (DEFAULT)