How can you tell what type of codec a movie needs to play write. I right clicked on the file and it tells me the audio format but it doesn't tell me the type of video format i need. Since it does tell you wat type of audio format you, wat does it mean. For example a movie i have says that the movie has a audio format of PCM. Wat does this mean. Is there a guide that explains to me the different types of audio format and video format. Thanks in advanced