LA Raiders Silver and Black Attack video

I realize this is not a "selling" forum and in the great scheme of things, probably not on the same level as world peace or a cure for cancer, but to Raider fans  everywhere it's pretty close. Someone appropriated my son's Silver and Black  Attack video that he has had since 1986 (and they say nothing lasts anymore) and  I would like to replace it for him. The problem is I can't find any place that sells it anymore. - not on or off the web. Does anyone have any idea  about where I might find a copy? And if so, could you let me know? Thanks.