How do you make a clear screencap like this one? I know how to make one with Windows Media Player, it went crappy although the clip is a HQ file. the picture pixellete. (It come out with those little boxes that you get in LQ files...i'm so frustrated abt that). Do I have to download any software to 'makescreencapping' easier?

source: Snow Queen thread@Soompi, mookie for posting and source : HyunBin Gallery
and how do i make a karaoke sub? the one like we have in Karaoke, the words were highlighted so that we can sing along?(Arghh how to explain this.

I hope you can understand). Do I have to download a certain softaware in order to do this?
and thank you for reading... and helping.