When watching those videos...if you want to keep a copy for future reference...say on another computer because you are working on another...watch the video...then go to your temporary internet files, copy the file from there to a folder on your hard drive.
That way you can play the video over and over as many times as you need...also handy if you have a slow connection like dial up.
In xp...the location of the temporary internet files to get the stored files:
C:\Documents and Settings\user name\*Local Settings\Temporary Internet Files
The newest files will be at the bottom of the huge list.
You will know you have the right files because of the size of file..anywhere from 600+kb to a few meg besides having the windows media player icon or winamp or whatever media player you use by default.
*= hidden files; therefore you will need to enable viewing hidden files and folders thru folder options> view, in your control panel.
In windows 98:
Temporary internet files location is:
c:\Windows\Temporary Internet Files
One thing to keep in mind...if you have IE set to empty out temporary internet files folder when browser is closed..(in internet properties/advanced/security) you will be unable to retrieve those files unless you minimize (don't close it) the the browser window (upgrading and reparing pc's window), then retrieve the files...now you can close IE.
Have a nice day.