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what is the best settings in compressor?
HI,
Finally finished a short 3 minute promo full of effects and speed ramps. When it comes to compressing it for DVD what is the very best settings to have it on.
Like i said its only 3 minutes long so it will quite easily fit on to a dvd but what are the best settings such as bit rate…and all that jazz (it all goes over my head a little)
Hope you can help!Dan
ps, Whilst im here i may aswell ask, on the same topic, if i wanted to make the same promo but for the web (broadband streaming) how would i go about that?
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6 Replies
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There are presets in compressor. Beyond that I’d jump over to the DVD SP forum.
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Without making any adjustments and using only the stock settings, the DVD: BEST QUALITY 90 (ALL) is the best I’ve found. I actually adjust the bitrates and dolby compression pending the job, but for sake of ease, go for the 90. That’s just my humble opinion. Chow
Tim
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Here is what I’ve found.
I can’t push the bit-rate up any higher than 8.7. Remember, that DVD is limited to a total bit-rate of somewhere around 10.2, but this also includes audio. Anytime I try to go higher than 8.7, DVD Studio Pro balks at it, and tells me my bit-rate is too high.
A shorter GOP structure is supposed to help with video with a lot of action and movement. However, we have discovered that an open GOP length of 15 gives us the cleanest dissolves. So far, I haven’t noticed any serious issues with artifacts when using the open GOP 15 settings.
This is basic….but ALWAYS use 2-pass VBR encoding.
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Thanks for your reply, seems very helpfull will put it into practice, thanks once again!
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Don’t know about ALWAYS. For a short video one-pass CBR using a relatively high bit rate will give you equally good quality but much faster compression. If you putting a half hour show on a disc or less I think CBR is more effective.
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I’d actually caution against using VBR at all. One of the problems with Compressor (or at least v1.2) is that you can’t really trust it when you set VBR – you know when you set your average and max rates? well inrealitythere are often spikes that exceed your max rate that are illegal in terms of the official DVD spec. There is software that can analyse your actual data rate on the .m2v that has shown this to be the case. By setting CBR you will ensure that you have a constant rate that you are in complete control of.
Maybe anyone who has used the new version of Compressor may care to comment on a tighter integration?
It is also worth adding that just because you can encode at high levels (around 7-8) it doesn’t neccessarily mean that it is advisable. Most domestic cheapo DVD players have cheap lasers that are not always happy with burnt discs that push the bit rate to the max. I try to keep to around 6 mbps to ensure the greatest compatibility across the board. And use good discs as well – e.g. Verbatim or Infiniti. Always try to cater for the lowest common denominator for the greatest success.
Hope this helps.
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