Although the SEC standard for SECY does not apply to stacked data, stacks have been stored on tape media for quite some time in a format roughly following the SEC publication. For tape media, the EBCDIC, the binary file header, and individual traces (single trace blocks) are put on tape, each separated by an inter-record gap and then followed by a single EOF. Several lines may be stored on tape in the above sequence with one EOF between lines and two EOFs after the last line. Subsequent tapes in multi-tape volumes should have EBCDIC and binary headers at the start of each tape.
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