Can I save a Video/Audio being played on WMP/VLC/KMPlayer?

[ConverterCrazy]

I have some videos that can be played on the WMP/VLC/KM Players. I want to save the files being played. All videos have been downloaded from youtube in MP4 or FLV formats

How do I go about it? The capture options are greyed out in KM Player; Convertors "refuse" to convert!

What's the way out?

Any help will be highly appreciated.

Thanks

[Baldrick]

Save? Haven't you already downloaded them? Or do you mean convert? Then use freemake video converter, winff, format factory, etc instead.

[ConverterCrazy]

Hi and Thanks, Baldrick

The original files are small in size - 320x240, I covert them to 640x480 for easy viewing. The other reason for conversion is to join the split files. Sometimes, I tinker with the videos, if audio is not good quality using multiple audio tools. (That's why I chose the nick convertercrazy!

The Format factory says Error and iSkysoft' Video Converter [Trial] exits after saying "All files converted" though there is no output file.
Earlier, I never faced this problem with downloaded videos.