Rename videos

[Bossa Nova]

I use it for downloading videos from different sites. Nice, but it doesn't rename the videos according to their titles, like other downloaders do. Video files are downloaded with their original file names, which are often long and strange.

Is there a way to change this?
Thanks.

Example:

Video downloaded with another add-on: "Watch Monty Python's Flying Circus online - Watch .flv"
With FlashGot: "Watch_Monty_Python_s_Flying_Circus_online_Watch_Movies_Online_Full_Movies_Download_Movie2k_ff6a010ef17be0c531d565a9b58721266.flv"