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Originally Posted by Audionut
Originally Posted by Bodysurf
they say don't go higher than about 7Mbps with recordable DVDs.
Completly wrong.
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No, it's not completely wrong that that is what "they say":
http://www.customflix.com/Special/Au...tsAndBytes.jsp
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In a similar vein, DVD-R and DVD+R media is subtly different from replicated media, so some players may have a harder time playing duplicated discs. By sticking to an even lower maximum bitrate of 6.5 mbps, you're giving the player the chance to re-read some sectors if needed without interrupting the video. This provides similar benefits for scratched or dirty discs, making them a bit more likely to continue playing correctly.
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Procoder's manual says something similar.
http://www.signvideo.com/bt-rts.htm
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While a calculator will show you the maximum bitrate you should use, it's often best to use a lower bitrate and generally-speaking, when recording to DVD-R/RW or DVD+R/RW you should keep the video bitrate below 7Mbps even if the calculator shows that you can use a higher rate. Some experts on DVD production even suggest keeping the maximum MPEG-2 bitrate at 6Mbps.
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http://www.hellmanproduction.com/DVD...d-encoding.php (this place says 8Mb)
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Let's say your video is only 15 minutes long, and you are thinking about encoding it at the maximum bit rate. Should you do it? The answer is NO. The maximum bit rate is not necessarily better. We suggest encoding at no higher than 8 megabits per second. Certain DVD players might not be able to handle videos that are encoded with too high of a bit rate. So higher is certainly not better.
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http://72.14.207.104/search?q=cache:...s&ct=clnk&cd=3
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The MPEG-2 codec allows for encoding between 1Mbps and 9.8Mbps. In practice 8Mbps is the maximum bit rate you should use, for 2 reasons ...
1. You need to allow some bandwidth for audio and subtitles
2. Some DVD-video players will struggle to decode bit rates above 8Mbps
To recap ...
1Mbps = minimum data rate allowed by DVD specification
9.8Mbps = maximum data rate allowed by DVD specification
8Mbps = maximum data rate you should use (to allow for poorly specified DVD players
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http://www.creationtrek.com/DVD.htm
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I have a friend who authors full-time on a Mac with DVD-Studio pro, and a $100,000+ Sonic Solutions system. He has given me lots of general advice that seems to be true, no matter what system you use, for ultimate playback compatibility.
1: He claims, for set-top players, a maximum bitrate of 7 seems to take care of almost all players.
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I've read articles in DV magazine and EMedia that state the same thing.
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Originally Posted by Audionut
I set most all my dvd's to max rate of 9.3Mbps. With no problems what so ever found from playback from numerous devices.
That's from experience.
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Other people's experience differ from yours.
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Originally Posted by Audionut
Wrong, wrong, wrong.
With all due respect, you might want to base your opinions on actual experiance, rather than what "other" people say.
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I choose to not reinvent the wheel.
My time is too valuable for me to experiment to see what the max bitrate I can use that will work on a wide variety of players, so I choose to listen to the experience and advice of people/places I consider to be experts in the field.
Please don't be offended if I choose to follow their advice rather than that which you give.