The Matroska Multimedia Container is an open standard free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is intended to serve as a universal format for storing common multimedia content, like movies or TV shows. Matroska is similar in concept to other containers like AVI, MP4, or Advanced Systems Format (ASF), but is entirely open in specification, with implementations consisting mostly of open source software. Matroska file extensions are .MKV for video (with subtitles and audio), .MK3D for stereoscopic video, .MKA for audio-only files, and .MKS for subtitles only.
"Matroska" is derived from Matryoshka (Russian: матрёшка [mɐˈtrʲɵʂkə]), which refers to the hollow, wooden, "Russian doll", or Matryoshka doll, that opens to expose another doll that in turn opens to expose another doll, and so on. The logo uses "Matroška", with the caron over the "s", as the letter š represents the "sh" sound (as in "Matryoshka") in the Slavic languages in which it is used.
Analyzing and recognizing
How people are, takes a whole
Lot of time
But in a way or in the other
You can undress them from their wall of pride
Do you know there's a girl
Do you know there's a girl
Who can glance in you
And steal your mind
No deception can be a secret
In your smallest Russian doll
So while
You put up
You show
She knows
No time
For you
Don't mind
She knows
She's always trying to reach
Some kind of friendship with some-other
but knowing how
Things go she can't
An illusion, a reclusion,
A prisoner in her own
State of mind
Nothing new to.. to discover
Has taken her away from "life"
Do you know there are ways
And ways, and ways
To uncover layers of your mind
No deception can be a secret
In your smallest Russian doll
Omniscient relations
Between mind and veiled sensations
The colours faded to grey
Like in Russian movies
Images are moving