This plugin adds multiple repetitions of custom fields on saving or updating the post. I end up with many many copies of the same custom fields (autoload, autoplay, autorewind, loop, etc.) that this plugin creates.
It just needs to be fixed so as to check if the fields are already there and then if so not to continue adding them on every save.
I have to turn this plugin off until this is fixed. :-/
WP v3.4.2, Hana FLV plugin v.3.0.0