How do you download a video from Youtube?

Well, I seem to have lost the files of my videos that I made in the past that I still have uploaded on youtube and I kind of want to make a video including those videos. Is there a way to download them? O_o

Not sure if this is allowed o_O;. But I use the add-on from FireFox downloadhelper.

Not sure if this is allowed o_O;. But I use the add-on from FireFox downloadhelper.

That worked, thanks. However, how do I convert it to a playable file such as WMV, AVI, etc?

[COLOR="Red"]A quick google search found these:
http://www.zamzar.com/

http://www.nchsoftware.com/prism/

anmd a whole bunch more.[/COLOR]

Edit : Nevermind, I think I figured out my problem. Thank you!

http://www.mediaconverter.org is a great site. Just paste the link from youtube (and many other portals) and choose your output and you're set!

That worked, thanks. However, how do I convert it to a playable file such as WMV, AVI, etc?

Alternatively, you could find a media player that works with FLVs. My personal recommendation would be either KMPlayer or GOMPlayer. Other players that work include VLCplayer and MPlayer. This way you won't have to convert each YouTube video you download in the future.