I missed the "No Sound" part... That's sort of meh, but I don't doubt we'll have something before long - flash just embeds audio, doesn't it? That would make it merely a matter of piping audio to the default player or some susbstitute.
None of the xiao xiao movies work apparently I cant even get the first one to work (which is basically just an AVI file converted to flash.)
I tried another simple flash, a Kingdom hearts animation but that also hung on the title screen. I havent gotten anything with a preloader to get past that point.