capturing, seperating the clips and compressing in one step

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Michael in Hamm

capturing, seperating the clips and compressing in one step

Post by Michael in Hamm »

Hi members,

I am pretty new in this forum and although I tried to find an answer to my issue I failed.

What I want is following:
I want to capture a whole DVC, seperate the clips and store them in seperated files and I want to have them compressed. All this should run "in one step" meaning I want to start capturing the DVC and after returning to my computer after a while (or a little bit longer) I want to see this job finished.

Is this a dream or can that become reality ?
I have been using VideoStudio 8 SE DVD, which was given to me as a bundle with my new computer about a year ago.

Why I want to have this done ? The reasons are as follows:
1. I need compression because 40 DVC (becoming more and more) take about 480 GByte HDD. It takes a lot of money keeping my computer up to date with my growing number of DVCs
2. I want to have back-Ups from my DVCs in case that I loose my data on the PC or on the DVCs. I want to back-up a whole DVC on a single-layer DVD. Therefor compression rate should be about 60%.
I guess this is not to much taking care about a reasonable quality. For example I tried to compress in mpeg4 to reach 60% compression: I did not see any loss of quality
3. I want to keep the chance to edit older projects. If AVIs had been deleted and need to be captured again for editing an older projects I made the experience that this does not work. I tried so but VS 8 gave errors like "time for this clips need to be longer than ...". I interpretated this in that way that capturing twice does lead to the same AVI !

Thank you gueys for reading all this.

These are my three good reasons for compressing before editing.
It would be great to have any support on this. Maybe there are some genious ideas in the web.

Thanky for any help
Michael
THoff

Post by THoff »

It might be easiest to just get a standalone DVD recorder and let it handle the encoding and burning, especially if you don't need to edit the video.

You could copy the DVD directory structure to your PC's hard drive for immediate access without needing to swap disks. If you are using NTFS, you can set the Compression attribute and gain a little bit of compression, though in reality, the MPEG2 video used by DVDs doesn't compress much.
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Post by maddrummer3301 »

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Last edited by maddrummer3301 on Sat Feb 03, 2007 7:17 am, edited 1 time in total.
DVDDoug
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Post by DVDDoug »

I can't answer your "All in one step" question...

A couple of things to think about:
...in mpeg4 to reach 60% compression: I did not see any loss of quality
But, you might notice quality loss when you later transcode to MPEG-2 (DVD format)... You loose data each time you encode. If you are going to use lossy compression, try to compress only once. (i.e. Compress to MPEG-2 if you are making DVDs.) You may also notice quality loss if you upgrade to a better TV sometime in the future.
I want to keep the chance to edit older projects. If AVIs had been deleted and need to be captured again for editing an older projects I made the experience that this does not work.
Capturing twice should not be a problem. I suppose the tapes will deteriorate over time, or with many-many playbacks...

You can get into trouble editing highly-compressed formats (MPEG, DivX, WMV, etc.). Most editing (other than simple cuts & splices) requires a decode/re-code cycle. The additional compression step will degrade the video to some extent. And, you might end-up with some other weird problems if you edit compressed video (lip-sync problems, crashing, etc.).
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Michael in Hamm

capturing, seperating the clips and compressing in one step

Post by Michael in Hamm »

Hi DVDDoug,

thanks a lot for hinting mpeg-2. I notice quality loss everytime I start rendering. However mpeg-2 seems to be pretty good, becaus its the DVD-format, so that I render before editing instead of afterwards.

Ulead Video Studio 8 SE DVD can seperate clips in to seperated files but has no capture-tool for mpeg-2.

To the forum:
- Is there a mpeg-2 plug-in availlable for capturing for Ulead Video Studio 8 ?
- Can Ulead Video Studio 10 (or 10+) capture in mpeg-2 ?
- Are there other editor programm, that can capture in mpeg-2 AND seperate clips to different files ?
- Are there other utilities availlable to do this job ?

Thanks a lot for helping

Have a nice day
Michael

Finally: capturing twice is definetely a problem. It just did not work. There is a datecode on the tape, it has been of good quality, the tape is pretty new and it has been run a few time only (less than 5). It definetely did not work.
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maddrummer3301
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