On the Writing Meta Information page (https://exiftool.org/writing.html#Preview), the CIPA link under 2009-06-12 is broken. According to the Wayback machine, it broke sometime between Sept 2013 and March 2015.
The Wayback url to the original page would be
https://web.archive.org/web/20130911152141/http://www.cipa.jp/english/hyoujunka/kikaku/cipa_e_kikaku_list.html
A link to the Wayback copy of the PDF
https://web.archive.org/web/20130921053834/http://www.cipa.jp/english/hyoujunka/kikaku/pdf/DC-007_E.pdf
What appears to be a newer copy of the PDF, titled White Paper of CIPA DC- x 007 - 2009 Multi-Picture Format
http://www.cipa.jp/std/documents/e/DC-X007-KEY_E.pdf
Thanks!
I have changed the CIPA link to this: http://www.cipa.jp/std/std-sec_e.html
- Phil