Hi, I've used this plugin on a few projects and I like it a lot, thank you for sharing it.
I use it mainly for free downloads but I wonder if there's any way it could be modified to collect email addresses before people are given the free download link? Possibly even email them the link like paid downloads.
I guess it would need a form integrating but it doesn't sound like it would be too complicated. Any tips would be much appreciated or if the plugin author would consider adding this feature that would be really cool.