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2hr. Mainconcept .mpg2 too big for disc?
Greetings,
Here is my question. I have been using DVDA for quite some time- and I try to stay current. I’m running DVDA4b right now. I do video and film transfer to DVD as a side job. I captured about 14 120min. tapes into Vegas, and then rendered them out to mpeg2 and ac3 files using the DVDA template for regular NTSC settings. However, when I pull the file into DVDA it says that 127% of the disc is being used. How can this be if I am under the 2hr. limit, and I have rendered it to the mpeg2 form? Can someone help a brother out and point me in the right direction. I really thought I knew what I was doing, and I hate to have to optimize and run the bit rate down to 4.6 to make it fit on the disc.
Thanks,
Neal Barlow
Two Man Movies
http://www.twomanmovies.com -
10 Replies
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DVDA is not that good at estimating the total disc space used. Using explorer, check to see what your actual file sizes are.
Gary Kleiner
Learn Vegas and DVD Architect
http://www.VegasTrainingAndTools.com
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120 minutes of video = 2hrs.
That’s 2hrs of video not counting your audio file, and the
files used to create your DVD menues etc.The reality is you are going to have to drop your bitrate
a bit to fit it all on your disk. You can do a google search
for “bitrate calculator” program to help you figure out
how low to go.I have dropped my max bitrate as low as 6000 avg. 4000 with good results.
Hope this helps.
Regards, Rick.
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Thanks for the info Rick and Gary. Let me ask this then. Is there a better way to pull to two hour tape onto DVD then having to going to Vegas first and rendereing to an mpeg2? Would it be quicker to just put the captured .avi file into DVDA and have it crunch it to DVD then going to Vegas? I am just trying to look for the path with the shortest time. (aren’t we all though)
Thanks,
Neal Barlow
Two Man Movies
http://www.twomanmovies.com -
Even if you were to feed DVDA an AVI file, it still has to be encoded as an MPEG-2 stream for DVD creation.
A lot of us prefer to feed it an already rendered file.
In your case, for a 2 hr. video, the bitrate calculator I use says a CBR of 4,700,000 or a VBR of 8,000,000, 4,700,000, 2,800,000.
Keep in mind what Gary said about DVDA reporting things wrongly. This has been a complaint since it was introduced 🙁
If I know that my MPEG-2/AC-3 streams are under the allowable limit, I just ignore the warning. -
A lot of us prefer to feed it an already rendered file.
What is the disadvantage in importing an .avi file, and letting DVDA figure out the best compression? -
Again,
Thanks for helping me confirm what I was thinking. Is there a better way to capture a 2hr. tape and then put it on DVD beside buying a set top box. I just want to pull in the file, and fades at the beginning and end. No menus, just a play at first disc. The way I am doing it now is 2hr. capture in Vegas- add fades, render to .mpeg2, then pull into DVDA and recompress to fit to disc. In the end, it is like 6 hours for one project. Any ideas or equipment that would speed this up?Thanks,
Neal Barlow
Two Man Movies
http://www.twomanmovies.com -
If you compress it to the right bitrate in Vegas you will not need a recompress in DVD Architect. Another prior poster gave you the settings to fit it to disk without a recompress.
[Super Neal] “Any ideas or equipment that would speed this up?”
Since you have fades (which is editing) a stand alone DVD Recorder will not help you.You just need to make you mpeg render at the proper bitrate in Vegas.
Goodluck, Rick.
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Got…Thanks. Don’t know why I didn’t think of it that way. I am creating my template with new bit rates as we speak!
Neal Barlow
Two Man Movies
http://www.twomanmovies.com -
[John Quick] “What is the disadvantage in importing an .avi file, and letting DVDA figure out the best compression?”
No real disadvantage in doing it that way. I just prefer to do it from Vegas as I can specify CBR or VBR, single or 2-pass, etc.
In other words, I’m in control of the final result and not a computer 🙂 -
[Super Neal] “Any ideas or equipment that would speed this up?”
When dealing with mpeg source vide, Vegas lacks something called “Smart Render” — this feature only renders edited sections of your timeline, and then outputs the rest of the timeline without re-rendering.
To speed up your process, you could get a set-top dvd recorder to capture/convert the video. Then use software such as Ulead VideoStudio and/or MovieFactory to Import the mpegs from dvd — add you fades, and output the timeline to mpeg (using the same settings as the originals should allow “Smart Render” to work). Overall, this will cut out the time it takes to re-render the entire timeline…
Regards,
George
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