Lower thirds graphic breakup

KenJ62 wrote on 9/24/2010, 10:47 PM
This one has me stumped.

I edit a show for community access TV. My producer created for me with VMS animated lower thirds graphics for titles on a pure green background. The graphics work just fine with the chroma keyer and, in fact, I have been using them successfully for several months.

Recently, just one of those graphics has been breaking up. Stepping through the graphic, isolated by itself on the timeline, one frame at a time I notice several frames break up into a multitude of multi-colored blocks. The strange thing is that the breakup will occur in different places with different patterns depending on where the graphic is placed on the timeline! And it misbehaves before I drop the Chroma Keyer FX on the event so it isn't a keying problem.

I noticed this on the previous project but by retrieving a fresh copy from disk the problem went away. I just reviewed the previous project on the burned disk and the breakup does not occur on it. I tried retrieving my original copy of this graphic from the source DVD and I find that it does the same thing in this project.

Bizarre! Any suggestions?

-=Ken=-

Comments

TOG62 wrote on 9/24/2010, 11:46 PM
It sounds to me as though there are errors on the source disc and that VMS is only partially successful in correcting them on import. You could try cleaning the disc or ask for a replacement.
KenJ62 wrote on 9/25/2010, 12:17 PM
In anticipation of my next project I created a new one and placed the problem graphic on the timeline and stepped through it one frame at a time. It works perfectly.

Do you like puzzles? <smile>
KenJ62 wrote on 9/25/2010, 12:51 PM
I went back today to check my original problem project and this time it displayed no errors, no matter what I did with it! <insert Twilight Zone theme here>

Could it be as simple as a refresh of PC memory allocation? <shrug>
My system is very stable and I have not detected any other problems.

BTW, I am working on a DV-AVI 4:3 project in VMS10 HDP and I have a 3.2 GHz Q9400 with 2 GB running on Win7-32bit. I have four video tracks to accommodate graphics, titles and a show logo "bug". Since I edit HDV projects all the time these shows shouldn't really tax my system.
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Yep, happened again on a newer project. Restarted Win7 and cleared right up.