Review of Charlie Chan at Treasure Island

I recently bought this video on Ebay. I'm told it's hard to find in stores. I recall the Dr Zodiac scenes being frightening as a kid and you know, there are still scenes in this that give me the creeps.

The scene where the female psychic keeps sensing evil (evil looking like two eyeballs illuminated in the darkness) and that nasty looking Dr Zodiac gave me nightmares. I wonder why they don't make a Charlie Chan movie today with some Asian actor finally playing Charlie.