Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Editing › Capture and compress large files to DVD disk image
- December 20, 2009 at 2:12 AM #41736mroyParticipant
I work in my high school auditorium, and part of my job is to produce, duplicate, and sell DVD’s of most events we host. We have three cameras mounted on Eagle PTZ heads, and control them in the light booth with an eagle controller. From there the cameras are routed into our switcher/ production computer running NewTek VT5.
This is how we have been producing the DVD so far:
We record VT5’s program output directly onto a DVD using an external DVD burner. When it is time to copy the disc we take it to another pc workstation that runs a robotic duplicator. This has worked okay so far, but over time the master DVD’s wear out and start causing problems. Also, the time it takes the DVD drive to finalize, along with the time it takes the duplicator to create a temporary disk image file to copy from adds at least an extra half hour to our production process.
Here is what I would like to do:
I would like to take the output from the VT5 workstation (most likely Firewire,) and use the duplication pc to capture the feed live. Our shows usually run around two hours, so I would have to somehow compress the video file to fit it on a DVD. Then I need to create a disk image file that the duplication software can work with. By doing this, all I would have to do to make a copy is tell the duplication software to read the disk image, rather than search through the binder for the master DVD.
What I need help with:
I’m looking for any suggestions regarding the best/fastest software that can capture and compress the video, as well as create a disk image. Is there such a program that can do all of that? Would I have to use multiple programs? Also what file formats would be the best to use throughout the whole process?
I am also hoping to archive a file that can easily be imported into an editing program, hopefully not too large a file, but still keeping decent quality.
- Is a 6 pin Firewire cable fast enough to transfer the video?
- Will a 15 foot Firewire cable affect the quality or speed of the transfer?
- I will be using an external hard drive to store the video files and disk images. What kind of drive will perform best, considering the tight budget we are on?
- I will most likely need to trim the video at the beginning to cut out any black space/ color bars. Will this software be able to do that, or will I have to use an editor?
- Can I set the compressed file size so the entire DVD is used up, keeping the quality as high as possible?
Thanks in advance to anyone who responds. I know I’m asking a lot, so any ideas and suggestions are greatly appreciated.
- December 20, 2009 at 2:45 AM #176640CoreeceParticipant
Unfortunately, I truly believe you are already using the most time efficient way to create a DVD.
What you want to do is possible and you would be able toget better quality by using the full Dual Layer 8.5 GB DVD but you’re probably talking about another 2+ hours of production time opposed to the current 30 minutes.
- December 20, 2009 at 3:32 AM #176641mroyParticipant
At what point in the process are you saying 2+ hours for? The only added time I could see would be in the encoding of the image file. I’m okay with a little extra time in the encoding if it saves me time later on. My reason for the image file is easier organization of the master, (opposed to a binder full of DVD’s) and faster on-demand copying. We often will get one order from random show, so I could find it quick and be copying immediatly.
- December 20, 2009 at 6:31 AM #176642CoreeceParticipant
Once you capture the footage you can use a program called Adobe Encore to compress and create a dvd and an.iso image file.
The compression time will vary depending on you system. It looks like youhave 2serious processors and 2 gigs of RAM so your computer shouldpreform very well….probably not the 2 hours I originally thought.
Encore will allow you to create a dual layer dvd that will enable you to fit 2 hours of video on a dvd at higher quality bitrates around 7mb.
There are also discounted education versions for which you would probably qualify.
- December 25, 2009 at 11:11 AM #176643wonx1312Participant
<h1 class=”topictitle”>Capture and compress large files to DVD disk image?</h1>
I am so curious about it.
- You must be logged in to reply to this topic.