Each three-column index entry lists the selected index entry, the title or author entry, and the OCLC control number. Magnetic tape Machine-readable offline union lists can be loaded into local library systems via magnetic tape. Data can be accessed and presented as appropriate for local needs. Each tape contains full bibliographic records, SIHD holdings information, and SCHD holdings information, if ordered. OCLC uses nine-track magnetic tapes with 1600 characters per inch.
Records are unblocked and of variable length.
You can order a sample tape through your OCLC-affiliated Regional Network Office. Ordering Offline products can be purchased by individual group members, group subsets, or the entire group. Orders can be placed every six months via the Union List Offline Products Order form. Contact your OCLC-affiliated Regional Network Office. OCLC Online Computer Library Center, Inc.