Unknown file format 0------> wtf i need to do
 

when i start i movie i get message "Unknown file format 0", so please what i need to do

you should reinstall the codec used in your movie.
Some soft allow you to know what kind of codec it used, but i don't remember them.

It's caused by a missing codec or by an incomplete file.

So then what kind of codec do i need. Please give me codec's name and adress where i can find it.

mm,

ever tried google ??

if you have no idea what a codec is
try installing a codec pack,
most likely the right codec is included,

SLD, NIMO, ...
search for them on google,
after installing one of them your movies should play

Don't install nimo codec pack. It sucks. For divx codec go to www.divx.com/divx/ for xvid codec go to www.xvid.net/ and for mpeg 2 search for elecard codec. Good Luck !

if you use 0.86.496, you might look at this thread

m3n... whatever the name, don't blame the player if you're unable to watch a movie. I suppose you got it from the net, otherwise you had known the codec you used. Formatwise I assume it's an AVI which is only a container format: video stream can have different (MPG)code.
As said before, the movie is only a chunk/truncated and important meta data is missing or you really need a certain codec.
I also dislike those codec packs, they often cause trouble.
A simple (and my favorite) solution is to install a filter that's very comfortabel and powerful: ffdshow. It decodes most most of your videos (MPEG4 like XVID or DIVX, or MPG1 and 2) and has many other options to provide better image quality.
Another option is to use gspot (v2.2 ATM). It analyses your stream and tells you if the needed codecs are installed. If it fails to do so, then your AVI might be corrupted or a chunk. Try to reopen it in VirtualDub if you like and fix it.
If you don't know VirtualDub I won't explain it here. If you dare search the web for details or have a look at www.doom9.net the one and only video coding related site in the world, really!
BTW, bsplayer normally displays the codec used in the video stream when showing those error messages, which means that the codec is on your machine but the movie is broken.