VMS Help SET, ENTRY, Qualifiers, /BURST  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /BURST
       /NOBURST

    Controls whether two file flag pages with a burst bar between
    them are printed preceding each file in a job.

    Use the /[NO]BURST qualifier to override the /DEFAULT qualifier
    options that have been set for the output queue you are using.
    The /[NO]BURST qualifier does not override the /SEPARATE
    qualifier options set for the queue.

    When you specify the /BURST qualifier for a file, the /[NO]FLAG
    qualifier does not add or subtract a flag page from the two flag
    pages that are printed preceding a file.