Here is how you can install win32 codecs for QuickTime 1. Download qt6dlls.tar.bz2 which contins QuickTime6 DLLs from MPlayer official site [tchung@localhost tchung]$ cd download [tchung@localhost download]$ ls qt6dlls.tar.bz2 [tchung@localhost download]$ 2. Extract and Decompress it with tar [tchung@localhost download]$ tar jxvf qt6dlls.tar.bz2 qt6dlls/ qt6dlls/QuickTimeEssentials.qtx qt6dlls/QuickTime.qts qt6dlls/QuickTimeInternetExtras.qtx qt6dlls/qtmlClient.dll [tchung@localhost download]$ ls qt6dlls qt6dlls.tar.bz2 [tchung@localhost download]$ 3. Create a directory called /usr/lib/win32 with sudo commnad [tchung@localhost download]$ sudo mkdir /usr/lib/win32 [tchung@localhost download]$ 4. Copy the contents of qt6dlls over /usr/lib/win32 with sudo command [tchung@localhost download]$ sudo cp -a qt6dlls/* /usr/lib/win32/ [tchung@localhost download]$ ls /usr/lib/win32 qtmlClient.dll QuickTimeEssentials.qtx QuickTimeInternetExtras.qtx QuickTime.qts [tchung@localhost download]$