Weird little issue - problem - glitch - whatever........

Gonzoman wrote on 4/25/2005, 9:54 PM

So I have this piece that is 30 minutes long....already rendered out as NTSC DV .avi file. I open this avi file up in Vegas and watch it via my external monitor and it's look beautiful. I open this file up in Windows Media Player and watch it and it still looks great. So, I decide to burn it to DVD and open up DVDA2 and commence working on it there. I burn the DVD and watch it back on my TV and I notice some weird little flash type thingies happening about 30 seconds into the piece and it only lasts for a few seconds. I open up DVDA2 and play the footage within DVDA2 and there it is - plain as day. I open the .avi file back up in V5 and it's nowhere to be found.

Anybody got any ideas what's going on here?

Here's a screen cap!

Thanks -

Comments

DJPadre wrote on 4/25/2005, 10:15 PM

looks like a gop issue to me..

i no longer use the in built encoder but i do use main concept standalone encoder..

this allows me to allocate time to "Search Method and search range" to full.. basically as compression occur moreso in a moving frame that a static shot, you lose alot of detail.. what this does is oversan the active areas and encode a lil smarter and retain a better definition of the movement within the field..

doing htis takes a lil longer, but its still twice as fast as the mpg encoder within Vegas.. i cant speak for V6 though.. im still having issues..

Gonzoman wrote on 4/25/2005, 10:27 PM

I just looked at my .avi footage "frame-by-frame" and it's showing no problems. Then I opened this footage up in DVDA2 and zoomed in on the footage and I found black frames with nothing in them - that's what the problem is. It's not in the rendered .avi file but it is showing up in DVDA2.

Here's a screen cap!

Anybody got any ideas?

Edit: I found several posts in the DVDA section with the same problem but have yet to find anyone with answers......still looking though :)

Liam_Vegas wrote on 4/25/2005, 10:31 PM

Any chance you rendered that file using the Sony YUV codec? I have experienced odd black-frame issues with that codec only.

Gonzoman wrote on 4/25/2005, 10:42 PM

Hmmmm - I'm not sure what a Sony YUV codec is. I rendered the .veg file using the NTSC DV template within V5 - Video for Windows (*.avi).

I don't see these black frames within the actual .avi file. I only see them when looking at the footage from within DVDA2.

johnmeyer wrote on 4/25/2005, 10:50 PM

You definitely should click on the Support button at the top of this page and report this to Sony.

Grazie wrote on 4/25/2005, 11:27 PM

2 things I want to hear:

1/- Can you see these same Black frames within the AVI on the T/L?

2/- Can you see within the VEG file a "gap" at this point?

Regards

Grazie

Grazie wrote on 4/25/2005, 11:29 PM

Apologies - You've answered No. 1 - G

Gonzoman wrote on 4/25/2005, 11:50 PM

Hey Grazie - yes, this is the KrAzY thing. I've gone frame by frame on the .avi file and the .veg file on the timeline and it shows no trace of any black frames. Then I open up DVDA2 and import that .avi clip and zoom down on it and there they are - black frames.

Liam_Vegas wrote on 4/26/2005, 12:10 AM

Try rendering to MPEG2 from Vegas... at least that may be a workaround (I pretty much always render in Vegas anyway).

Gonzoman wrote on 4/26/2005, 12:12 AM

Liam - I have several clips that I'd like to put on the DVD - how do I go about figuring out the right compression for the render when wanting to burn multiple clips to the DVD?

Liam_Vegas wrote on 4/26/2005, 12:20 AM

A bit-rate calculator will help... a search on google will get you there.

How long are the videos anyway?

Grazie wrote on 4/26/2005, 12:22 AM

Weird indeed! . .

Do you render an MPEG from the AVI - or straight from the VEG?

OK, remove a whole lump . .say 20 frames . .from around the troublesome part. Then just render that tiny itsy bitsy portion. These are things I would try as workarounds - these aint clever observations on my part . .. trying to make workarounds, that MAY indicate a flaw in the file or whatever?

Regards,

Grazie

Gonzoman wrote on 4/26/2005, 12:25 AM

Well, for this particular project I have one clip that is about 30 minutes and another that is about 20 minutes and I want to put them on the same DVD. It's so nice to be able to just render out as .avi and take them straight into DVDA and let the program do the compression.

TheHappyFriar wrote on 4/26/2005, 6:04 AM

According to my bitrate calc, 50 minutes will easily fit on a DVD, even at the highest bitrate settings.

I'd suggest rendering at 6mbs, or somewhere around there. That will give you plenty of room for menus & such.

This is in DVDA2, huh? I suggest downloading the trail of DVDA3 & do the exact same thing in there. If it happens again it could be a bug in DVDA overa couple versions or something on your system.

Please, get back to us (I always render from Vegas, but someday I may plop an AVI on the DVDA T/L)

Liam_Vegas wrote on 4/26/2005, 9:29 AM

Just render using the built in standard MPEG2 DVDA templates included with Vegas - no need to change any bit-rates or other settings. Then of course render the same project to the Dolby Digital .AC3 format (as the MPEG will not have audio embedded).

Gonzoman wrote on 4/26/2005, 11:10 AM

Bumping this thread for the morning crowd....it's still morning here in San Diego :)

Hey Sony moderators - don't be afraid to jump in here and help me out with this. I know you guys have seen my threads - 2 of them on this board now regarding this issue. I know that your not obligated to respond to any of these posts and actually provide support for your own product....but it would be very appreciative if you would offer some comments or recommendations on how to remedy this problem.

Thank you -

Liam_Vegas wrote on 4/26/2005, 11:28 AM

"Gonzo"

This forum is not specifically a place to receive direct support from Sony... and there is no guarantee that you will receive a faster response to a specific issue you have than if you choose the "direct" support options provided by Sony.

You've tried to initiate a direct dialog with Sony several times now through this forum... and I suggest you pick up the phone and call. All you are doing right now is coming across as badgering the Sony folks.

Gonzoman wrote on 4/26/2005, 1:24 PM

You are right Liam! I sent them an email thru support - how long does it usually take to get support that way?

I just thought that posting the problem here and getting an answer from Sony would benefit anyone else who might have a problem like this. These boards are a great resource for things like that as I've found answers to make questions simply by utilizing the search feature. Yet sadly, I have found no answers to this problem...although I've seen several posts made by people with the same problem.

If an when I get an answer from Sony, I'll post it here so that others having this problem will now have a solution.

Liam_Vegas wrote on 4/26/2005, 1:51 PM

I really don't fault you for wanting to get an answer to your problem. The fact that we'll encounter problems, in any software, is a given. For a new upgrade the chances are doubly so.

While working on a very tight deadline (recently) I encountered a problem with network rendering using the Sony YUV codec (which gave black frames that were sometimes visible, sometimes not)... I could have kicked up a storm in these forums - but instead went the route of finding a work-around.

I had no expectation that any sort of bug such as I was encountering would be solved by me posting to these forums and demanding a response direct from Sony. That simply is not the way bugs get fixed. It just antagonizes the people who ARE working very hard to make the software I sit in front of for hours/days at a time better for me.

In my case I received a reply from Sony several days after I posted my support question and had several exchanges of email. Although I could describe my problem very well... it is based upon proprietary assets and consumes a fairly hefty amount of drive space.. Sony really needed the source assets to analyze the problem... but that's not practicle for me to package up and send.... so I hope my raising the issue would at least be of some help.