It depends on what you are buying, but some American things are there. Kodak film was reasonably popular up until the digital revolution, particularly for some business applications.
Campbells soup sells well enough in Japan. Coca-cola does well enough.
What interests me about your statement was "bootleg videos". What bootleg videos did you see and where did you see them? I have done a lot of shopping in Japan and I have never seen bootlegged American videos --- I am not sure who would even to want to buy them without having being dubbed.