[Qgis-user] How to covnert .jpg/.png to .shp

[emigrant]

On Sun, 2010-03-14 at 14:07 +0200, Micha Silver wrote:
> There are lots of places to look for freely available GIS data. One
> of 
> the popular one's is Open Streetmap: http://www.openstreetmap.org/
> OSM data are not shapefiles, but QGIS can read them.
> 
> Another source for small scale maps (size of a whole country or 
> continent) is:
> http://www.naturalearthdata.com/
> Their layers *are* shapefiles.

Thank you very much for the reply.
the first link seems does not have any option to download. the second
link offers large pack of data. Which I think consist maps of all the
countries.
Is there anyway I can get the shapefile of South Asia alone?

Thank you very much.