1. Install VLC and watch downloaded videos with that.
OR
2. Use "www.keepvid.com" to convert and download youtube videos in available format such as MP4 or you can even use it to extract audio only into an MP3 file.You will need to install JAVA for this WEB site to work properly.
OR
3. Use Mozilla firefox add on called "Download helper" and use it to download videos from youtube directly (which will usually be FLV) or you can even use it to download video and automatically convert it into some different video type you would like such as AVI.
OR
4. Download video file with Mozilla firefox add on called "Download helper" directly into FLV and then use some other program to convert it into a video file type of your choice.
OR
5. Use SCREEN CAPTURE feature of Mozilla firefox add on called "Download helper" to record in real time what is playing INSIDE of the screen player (the one on youtube).
OR
6. Use some other screen capture software to record in real time what is playing INSIDE of the screen player (the one on youtube).
OR
7. Use some other player or/and other type of program which is capable of playing videos AND which is also capable to download them from the WEB site such as...I don't know...Real player...(I think that is how it's called...I never used it though...

)
OR
8. Or do whatever the hell you want lol...

...the options are unlimited...
