... such as (sorry I can't get to edit my previous post)

## mediaTomb (you'll have to tweak it to get Samsung TV to recognize MKV)
Good : only conf to modify + free
Bad : does not have chapters / subtitle menus / Bookmark

## twonky suite
Good : transcoding (even if our TV handle most of media format)
Bad : not free

## miniDLNA
Good : free + have chapters / subtitle menus / Bookmark
Bad : have to patch it.

For those who are interrested you can follow this thread : http://sourceforge.net/projects/minidlna/forums/forum/879957/topic/3708596/index/page/1

Personnaly I used this patch version of miniDLNA and it gives me complete satisfaction.