[Closed] Keirin DVDs/Videos

Hello, I'm wondering if someone on here might be able to help me. I'm not really sure if what I am after actually exists but here's hoping...

I'm organizing my mate's stag do and want to set up a Keirin racing evening in a good boozer as part of the festivities, just for few friendly wagers like. I would like to find some good footage of, preferably, authentic Japanese races with the less editing required and higher quality the better. I don't suppose anyone has ever come across any dvds or similar on their travels or know of a particularly good place to look.