everything works but video disappears?

tj02360 wrote on 2/7/2011, 11:12 AM
I am a beginner but everytime I capture video, edit it and save it, when I close the program and open it another day, it never plays back the same. It will reach a clip and the preview screen goes black. I tried rendering as avi and mov but when I click on it, it nevers shows video, only audio. Any advice as to what I am doing wrong?

tj02360

Comments

Steve Grisetti wrote on 2/7/2011, 2:44 PM
It could be a number of things. It could be an outdated version of Quicktime or an outdated video card driver.

Or it could be that your computer is just overpowered.

What type of camcorder is this video coming from? What type of video is your project set up for?

How fast is your processor, how much RAM do you have and which operating system are you using?

Have you tried setting your Preview's quality to Draft/Auto?
richard-amirault wrote on 2/7/2011, 3:49 PM
I am a beginner but everytime I capture video, edit it and save it, when I close the program and open it another day, it never plays back the same. It will reach a clip and the preview screen goes black.

That is different from:

I tried rendering as avi and mov but when I click on it, it nevers shows video, only audio. Any advice as to what I am doing wrong?

Those are two different circumstances. It may be the same problem or two different problems.

We need more information. What version of Vegas, what type of files are on your timeline, where did they come from?
tj02360 wrote on 2/8/2011, 6:04 AM
I am using Microsoft XP on a Dell Latitude D830 laptop with 47.6 GB free. I store the videos that I recorded on a Maxtor harddrive with 276 GB free. The videos came from a Kodak Playsport Zx3 video camera. They are home movies. I did not have any problem dragging them to the timeline, splitting and editing them or adding text. I save it to the storage device when I finish. I have Quicktime 7.6.9 installed on the laptop. I am using Vegas Movie Studio HD Platinum 10.0 (Build 179).
I changed the preview to draft/auto and the video was visible. Thanks for the advice.
Any ideas on why the video is not visible when I play it after rendering it?
musicvid10 wrote on 2/8/2011, 8:27 AM
"I tried rendering as avi and mov but when I click on it, it nevers shows video, only audio."

You are probably rendering to the Default AVI or Quicktime templates, both of which are uncompressed video. Uncompressed video is huge and usually unplayable.

Render to a compressed codec instead that is appropriate to your intended use (web? youtube? local player? dvd?)
tj02360 wrote on 2/8/2011, 9:46 AM
before I had a chance to try your suggestion of rendering to a compressed codec (not sure what that is) I worked on editing the original and the same problem came back. The video would start to play but then the preview screen would turn "red". The audio would continue but the video would disappear. If I let it run, the video would "flash" briefly but most of the time, the preview screen would stay "red". I didn't matter if I used a "saved" program from either hard drive. Is it a memory issue?
musicvid10 wrote on 2/8/2011, 10:40 AM
"...rendering to a compressed codec (not sure what that is)"

Well, you might begin by reading this tutorial thoroughly for important definitions, sharing with us your source video properties, what your intentions are for the rendered video (second request), and proceeding accordingly, asking meaningful questions along the way. Good luck.
http://www.sonycreativesoftware.com/forums/ShowMessage.asp?ForumID=12&MessageID=660127

BTW, your Dell laptop is a little weak in the CPU department if you are editing, rendering, and playing back 1080i HD (you didn't say . . .).
tj02360 wrote on 2/8/2011, 11:05 AM
thanks for taking the time and posting the link.

I did not pay attention to the minimum requirements when I purchased Vegas Movie Studio. I should probably upgrade.

thanks again.
musicvid10 wrote on 2/8/2011, 11:12 AM
You should have at least acceptable luck if you shoot, edit, render, and play 720p from your Kodak instead. It is much easier on the CPU, and is actually preferable to 1080i for most delivery paths at this point in history.