What is the easist way to add overlay text over videos like AVI, MP4, etc..

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 have purchased imElfin copy but it will not open on my desktop ? i have entered my licence

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.

When i watch video on my iPhone 3g, it plays videos but for 3 secs and then goes back to the page where the video is. why that happens? I can't watch the entire video!! What should I do?

My friend made me a bunch of DVD's of this show. And i want to get them onto my ipod touch. I have no idea how to do this? is it even possible? Is this any tricks I can use to get the movies onto the ipod? Thanks so much!

My iTunes Library file becomes damaged very frequently, re-install can't solve the problem. Any suggestions?

I have a iPhone and can't download the songs straight to my phone.

I want to make some clips from different movies and make them as the source on my teaching classes, how to do this?

im not trying to burn data into a disc im trying to burn some dvd/seminar to my computer does anyone no any software's? or a way to do it on a windows pc?
Thanks!