Video and Movie topics

I was curious.. I was thinking of using a 4-second clip from a 20-year old movie in a documentary I'm currently making.   Does that constitue fair use, or would I need to get permission? ...

Does anybody know why this camera is programmed to shoot in low-light levels with 1/100 sec shutter speed plus 6db gain. I thought the standard shutter speed for a PAL Digital video camera is 1/50 sec (1/60 ...

I would like to buy a DVD camcorder but am concerned that the DVDs may be incompatible with different types of equipment I have or may have in the future.  For instance, I need it to be compatible with my computer, ...

When I try to install this CD I get the message: "C:\WINDOWS\SYSTEM32|AUTOEXEC.NT. The system file is not suitable for running MS-DOS and Microsoft Windows applications. Choose 'close' to terminate the application." It gives me 2 choices Close and Ignore. Clicking "ignore" did not help. ...