I have a recorded video that the audio is out of sinc, and I would like to extract the audio then put it back on the video with the correct timing. (I know I'm not using technical terms, I know how to put the audio back on, I just need help extracting it.)

Is there an app to record iPad screen?

Created DVD will not play with Windows Media Player my standard player. The disk is seen by the drive, but it will not start.

How shall I choose between Samsung Galaxy S4 and iPhone 5S?

How do you like YouTube?

I convert avi to dvd, but can't play them on my dvd player. VCD and orindary dvd play well. Do I need another DVD converter program or what can I do? Please help!

I know youtube converts your uploaded video after it's uploaded.
I'm trying to copy the same quality a video has on a computer onto the uploaded version; hopefully you can follow what I'm tryin' to say.

i am cannot decide between 720 and 1080. i sit at a desk watching my movies on the pc and my screen is on another desk directly in front of me connected to 5.1 surround speakers. It's a 24" screen.
With the 720 and 1080 p video make any difference on my display?