Hello. I'm new to burning DVDs using Nero Vision but I've read a tutorial and kind of understand it (although did not try yet). Now my question is about quality of the DVD you are making. As I figured out the quality depends on bit rate alone. I do not understand though why it takes more space on DVD to burn a video then it takes on a hard drive in .avi form? The high quality on Nero is 8000 kbits/s which is about 60 minutes of video. The particular file (.avi using xvid 1.0.2 codec if that helps) I'm trying to burn has 755 kbps video bitrate and 192 kbps audio (not sure what it means) and is 1.4 GB in size. So how does Nero enhance the video quality from 755 to 8000? The file is 2.5 hours long and I don't want to spend 3 DVDs on it. How will the performance suffer if I go from "high quality" to "long play" quality settings to keep it on one disk? Thank you in advance and sorry for long post.
Bitrate does have to do with quality, but if you start with a low quality video, there isn't much Nero can do with it. The automatic setting in Nero is so it will adjust the bitrate, if needed, to fit your project on one disc. The graph at the bottom of the page will show how much of the DVD will be used when burning the project. Most DVDs will hold around 1+30 of video and I usually look at the time as opposed to the original file size. You might try playing with the settings by using custom and see what effect it has on the amount of space used on the DVD. Audio quality also has an effect on the space required to burn a DVD. The more information, the more space needed.
1 hour and 30 minutes? I put 4 hours on a 4.7 GB Memorex DVD-R yesterday, it plays on my DVD player and I cannot see any imperfections in quality :-/ I don't get what's the use of Nero Vision's quality setting (other then making sure the whole DVD is used rather then just a part of it)
Well, maybe I said that incorrectly. http://www.signvideo.com/bt-rts.htm http://en.wikipedia.org/wiki/Bit_rate#Video_.28MPEG2.29 Nero tries to give you the highest quality it can, but reduces it if the project will not fit on a disc at that level of quality. It appears Nero also looks at the quality of the video to be transcoded and probably adjusts the quality for that. If you hold you mouse over the video on the titles page in NV4, it will show the recording quality to be used for your project. I don't believe reducing the video quality for your project would be a problem.
