Не полностью отдаются файлы

Господа подскажите...исходные данные, виндовая машина, отдаю фильмы, если локально качать, отдаются 100%, а если удаленно, то файлы не докачиваются. Вот код, который отдает...помогите ребята

<?php

include ("core/config.php");

include ("core/function.php");



function stop_page()

	{

	header($_SERVER["SERVER_PROTOCOL"] . " 403 Not Found");

	die();

	}





$user_id=$_SESSION[vdb_id];





if ($_REQUEST["action"]!="dldc")

	{

	session_write_close(); 

	if ($config[$_SERVER["SERVER_ADDR"]."_download_http"]!=1) stop_page();



	$fn = $_REQUEST['f'];

	

	$sel = 'SELECT *  from `scanfile` where id="'.$fn.'" ';

	$tmp1 = runSQL($sel);

	

	$sel1 = 'SELECT codirovka,user,password,tip from `istochniki` where id="'.$tmp1[0][istoch].'" ';

	$tmp2 = runSQL($sel1);

	

	$filename = $tmp1[0]["url"]."/".$tmp1[0]["name"];

	$filename=convert_codir ($filename,"utf-8",$tmp2[0]["codirovka"]);

		

	if(!file_exists($filename))

		{

		header($_SERVER["SERVER_PROTOCOL"] . " 404 Not Found");

		exit;

		}

	//Пишем хит на пользователя на фильм

	$INSERT = 'INSERT INTO `hits` SET userid="'.$user_id.'", filmid="'.$tmp1[0][id_film].'", date="'.time().'"';

	$id = runSQL($INSERT);



		if($config["stattip"]=="win")

				{

				$tmp=filesize($filename);

				if ($tmp<0) 

					{

					//определяем размер файла средствами виндовс

					$files=str_replace("/","\\",$filename);

					exec('dir "'. $files.'" ',$out);

					$lines=convert_codir($out[6],"cp866","utf-8");  // из кодировки доса в рабочую 

					preg_match_all('/1 файлов (.+) байт/i', $lines, $matches, PREG_SET_ORDER);

					$replace=array(" ",chr(194),chr(160));

					$tmp=str_replace($replace,"",$matches[0][1]);

					}

				}elseif ($config["stattip"]=="linux"){

				$tmp = exec ('stat -c %s \''. $filename.'\'');

				}elseif ($config["stattip"]=="freebsd"){

				$tmp = exec ('stat -f %z \''. $filename.'\'');

				}elseif ($config["stattip"]=="php"){

				$tmp=filesize($filename);

				}



	$fsize = $tmp;

	//$ftime = date("D, d M Y H:i:s T", filemtime($filename));

	$fd = @fopen($filename, "rb");



	if(!$fd)

		{

		header($_SERVER["SERVER_PROTOCOL"] . " 403 Forbidden");

		exit;

		}

	function translitIt($str) 

            {

                $tr = array(

                     "А"=>"a","Б"=>"b","В"=>"v","Г"=>"g",

                     "Д"=>"d","Е"=>"e","Ж"=>"j","З"=>"z","И"=>"i",

                     "Й"=>"y","К"=>"k","Л"=>"l","М"=>"m","Н"=>"n",

                     "О"=>"o","П"=>"p","Р"=>"r","С"=>"s","Т"=>"t",

                     "У"=>"u","Ф"=>"f","Х"=>"h","Ц"=>"ts","Ч"=>"ch",

                     "Ш"=>"sh","Щ"=>"sch","Ъ"=>"","Ы"=>"yi","Ь"=>"",

                     "Э"=>"e","Ю"=>"yu","Я"=>"ya","а"=>"a","б"=>"b",

                     "в"=>"v","г"=>"g","д"=>"d","е"=>"e","ж"=>"j",

                     "з"=>"z","и"=>"i","й"=>"y","к"=>"k","л"=>"l",

                     "м"=>"m","н"=>"n","о"=>"o","п"=>"p","р"=>"r",

                     "с"=>"s","т"=>"t","у"=>"u","ф"=>"f","х"=>"h",

                     "ц"=>"ts","ч"=>"ch","ш"=>"sh","щ"=>"sch","ъ"=>"y",

                     "ы"=>"yi","ь"=>"","э"=>"e","ю"=>"yu","я"=>"ya", 

                     " "=> "_", "."=> ".", "/"=> "_"

                          );

                    return strtr($str,$tr);

            }	

		

    //$download_file = urlencode($tmp1[0]["name"]);

    //$download_file = str_replace('_', '%20',$tmp1[0]["name"]);

	header($_SERVER["SERVER_PROTOCOL"] . " 200 OK");

	header("Content-Disposition: attachment; filename=".translitIt($tmp1[0]["name"]));

    //header("Content-Disposition: attachment; filename=".str_replace('_', '%20',$tmp1[0]["name"]));

	//header("Content-Disposition: attachment; filename=".$tmp1[0]["name"]);

    //header("Content-Disposition: attachment; filename=".urlencode($tmp1[0]["name"]));

	header("Last-Modified: $ftime");

	header("Accept-Ranges: bytes");

	header("Content-Length: " . ($fsize-$range) );

	header("Content-Range: bytes $range-".($fsize -1). "/" . $fsize);

	header("Content-Type: application/octet-stream");



	while (!feof($fd))

		{

		print fread($fd, 8192);

		}



	fclose($fd);

	

	exit;



	}elseif ($_REQUEST["action"]=="dldc")

	{

	if ($config[$_SERVER["SERVER_ADDR"]."_download_dc"]!=1) stop_page();

	//Пишем хит на пользователя на фильм

	$INSERT = 'INSERT INTO `hits` SET userid="'.$user_id.'", filmid="'.$_GET[filmid].'", date="'.time().'"';

	$id = runSQL($INSERT);



	}





?>