Extracting information from a file with fscanf()

[FlyHoney]

I run an open source music website where users upload project files from different music creation applications. I have been trying to write a script that will extract useful information from the project files, like application used, version number, plugins etc.. The infomation I need from the file is delimited by Ä and Á. I have been trying to use fscanf to grab the strings with the information I need out of the file, but I cannot seem to get it to work. My code is something like this:

$filename = "some/file.dat";
$file = fopen($filename, "r");
while ($file_info = fscanf($file, "Ä%sÁ")) {
   list ($version) = $file_info;
   echo "$version<br>";
}
fclose($file);

However this is not really working. Any help would be greatly appreciated.

*I should add that I am viewing the files in a hex editor and that is how I know how the information I want is delimited.

[kakki]

i think there is a pear extension, that helps with grabbing infos from mp3s...
check http://pear.php.net/package/MP3_ID,

or you can use preg_match to find that specific info

[Salkcin]

To get the info between Ä and Á, you can do something like this:

preg_match_all('/(?<=Ä).*?(?=Á)/s', $string, $match);
print_r($match);