Mime-type of downloading file

Question

i\'m trying to create downloadable video-files. In my site there is a list of files. All videos are in .flv-format (flash). There is exact link to the file for the all video

Answer 1

The recommended MIME type for that is application/octet-stream:

The "octet-stream" subtype is used to indicate that a body contains arbitrary binary data. […]

The recommended action for an implementation that receives an "application/octet-stream" entity is to simply offer to put the data in a file, with any Content-Transfer-Encoding undone, or perhaps to use it as input to a user-specified process.

Answer 2

Create a PHP page with the following:

<?php

$filepath = "path/to/file.ext";

header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Disposition: attachment; filename=$filepath");
header("Content-Type: mime/type");
header("Content-Transfer-Encoding: binary");
// UPDATE: Add the below line to show file size during download.
header('Content-Length: ' . filesize($filepath));

readfile($filepath);

?>

Set $filepath to the path of the file to be downloaded, and set Content-Type to the mime type of the file being downloaded.

Point the "download" link to this page.

For multiple files of the same type:

<?php

$filepath = $_GET['filepath'];

header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Disposition: attachment; filename=$filepath");
header("Content-Type: mime/type");
header("Content-Transfer-Encoding: binary");
// UPDATE: Add the below line to show file size during download.
header('Content-Length: ' . filesize($filepath));

readfile($filepath);

?>

Replace the information as specified above, and point the "download" link to this page with a GET parameter named "filepath" containing the file path.

For example, if you name this php file "download.php", point the download link for a file named "movie.mov" (in the same directory as download.php) to "download.php?filepath=movie.mov".