The image should be dimensioned for the screen. Just like a normal PC does.

And what OS should I use to do this things, can I share media trough the network using  the Windows 7?

The Pi will be able to read files being shared by a PC running Windows 7?

<t>Watch movies and images like this?<br/> <br/> Movie:<br/> <br/> <br/> <br/> Filesize: 8.75GB<br/> <br/> Codec: x264<br/> <br/> Video: 9727 Kbps<br/> <br/> Resolution: 1920x800<br/> <br/> FPS: 24<br/> <br/> Audio 1510 Kbps CBR<br/> <br/> Subtitles: .srt<br/> <br/> <br/> <br/> Images:<br/> <br/> <b...