Download Manager - one download per user

[growl]

is there a possibility to allow users to download one file only once?
would be useful to keep traffic low, so the users do not download the same file again and again.

[Jordan]

who on earth would download the same file again and again? even pron gets stored on my Comp.

[hermawan]

how to add list of download file,
as the default is only showing 5 item..how to make 10 or 15 list file.

[thomastbrown]

Lol, whats the point in this?