Problem sys script za download

Zdraveyte. Izpolzvam edna functisia za save na failove ot web na localnata mashina:
eto i source:
function wwwcopy($file,$nfile)
{
$fp = fopen($file,"w+");



while(!feof($fp))
{
$cont.= fread($fp,1024);
}
fclose($fp);

$fp2 = @fopen($nfile,"w+");
fwrite($fp2,$cont);
fclose($fp2);
}

Syotvetno se nalaga da svaliam i image failove (v povecheto sluchai jpg) i vsichko si raboti ok samo deto failovete sa OK do polvinata. Toest image failovete se zapisvat dobre do edna chast a ostanalata e pylna s greshki.
Niakoi seshta li se kyde bi bila prichinata za tova?
Rabotia pod win2000.
syotvetno sym si slojil
magic_quotes_runtime = Off v php.ini
Mersi predvaritelno!

opraavoh se.
slojish "wb" kato parameter na fwrite i vsichki trygna kato horata!