Extracting Subs from Subbed Videos

[un461v3n]

Hi Guys

Kinda new to the subbing thing but i just want to know if there's a way to get subtitle file from a softsubbed video?
The video type I'm talking about is in a Matroska or .mkv format. I have several japanese & korean videos with subs which you can activate via the menu of a VLC player or Windows Media Player Classic. However some of these videos have the subtitles included with the .mkv file and not like my other videos that have subtitle files separate from the .mkv. So again:

1. How can I get the subtitles from those .mkv files without separate subtitle files?

2. What programs can I use to do this?

3. Are there any recommended websites that have a library for subtitles particularly for japanese/korean movies?

Thanks.

[Baldrick]

Try mkvextractgui.