It is the second video produced by As-Sahab purportedly featuring a eulogy by Osama bin Laden to the 9/11 hijacker Waleed al-Shehri.
The voice is heard over a still picture of bin Laden, dressed and groomed as he appears in the September 6, 2007 video.
The 47-minute videotape was obtained by terrorism expert Laura Mansfield before it was to appear on several Islamist Web sites known for carrying statements from al Qaeda and other radical groups.
The only element tying it to somewhat-current events is in the introduction and the mention of the death of al-Qaeda in Iraq leader Abu Musab al-Zarqawi, who was killed during a U.S. raid in June 2006.
For several weeks, radical Islamist websites have been announcing that there would be "good news soon from Sheikh Osama bin Laden."