How to convert a web video like Youtube video to GIF?

I want to rip videos from dvd, should is rip the dvd via softwares like HandBrake etc, or should i copy and paste .VOB video files from DVD to my computer ? what is the difference between these 2 ways ? which one method is better and why ?

I want to make DVD to VOB for ripping DVD to VOB video for playback on compatible devices. Who can tell me how to finish it? Thank you.

I have been trying to get this video done I made but the files are so big and HQ that they lag my software!
They are MP4 and they are HUGE. I have been trying to get them done for the past 2 days but haven't been able to because of the slowness it causes. So I want to downgrade the size so it will help me to create the videos easily.
I am currently using Freemake Video Converter, but that sodding bastard took 6 HOURS to convert in WMV!!!!
So I don't want to go through that again... What is the fastest and best converter? And what format should I convert from MP4

I want to make a "best albums of 2013 " video with albums covers and my my audio talking about the video for uploading to YouTube. I can handle the subtitles part, but have no idea about how to add the album covers and audio to the video.

I want to find some YouTube downloader that can convert video so that I can play them on my iPoad touch. DO you guys have any suggestion?

I can't seem to find a site where I can downlaod a video. I want the actual video not just the audio.

I put an old movie into two of my DVD players, both did not work since that failed disc. And it said no signal. Now my player DOES NOT work anymore.Anyway to resolve it??