I am trying to author an mpeg from vegas 8. The movie is 1hour 39 mins long. One simple chapter menu. cant burn to 4.7 disc. try to optimize wont bring it down to bitrate to fit. Tried to manually change disc propertie bit rate still wont fit. Whats up. I should be able to fit a hone hour 40 min movie on a 4.7 disc. can you please tell me what to do for this to work'
The rule-of-thumb calculation for bit rate is 560/minutes of video asset, so for a video of 1h40m, or 100 minutes, your calculated bit rate would be 5.6 Mbps. That assumes you are using AC3 audio, and you must divide that 5.6 Mbps between the video and audio. (E.g. if the audio is 192 Kbps, then you have to subtract that nearly-0.2 Mbps from the 5.6. To be safe, you should encode your video at 5 Mbps. That's not a bad bit rate, depending on the encoder you use.