default permissions set to...

hi
i have another hopefully easy question.
In the server templates the default permissions for files are set to 750, which is fine.
Whenever uploading, the permissions are set to 644.

I have 1 domain on the server where users can upload mp3's and movies, which are converted to flv's

When ever a mp3 is uploaded through the website the permissions are set to 644 making the file not play.
I have to manually chmod to 755.

Is there a way to change the behavior only for .mp3 in a specific directory set to 755 without me doing this manually? Same goes for the .MPG and .FLV in a specific directory.

I don't want this chmod in any directory for "security" reasons and only for specific extensions.

I looked in Apache, MIME, FTP etc but there are so many trees that I can't see the forrest anymore :D

thank you

Status: 
Closed (fixed)