Why does it take so long to burn a Bluray disc

[KenB]

I'm using X4, and have a reasonable PC for this task, with a 6x Bluray burner.

I'm making a wedding video with 4 main files to put onto a Bluray disc. I've already pre-rendered the files to the Bluray spec (creating mt2 files). Once I hit CREATE DISC, I include the four files I want to use, add a menu, and hit BURN.

It's taking FOREVER. I'm only using half the available Bluray disc space, too. I was sure the "Don't convert complaint files" was checked, so I would think the burn should be relatively fast (<1 hour).

It's not trying to re-encode the files again, is it? Then why is it taking so long? It's been an hour and it's only at like 10% finished.

Baffled. Any help or insight is apprecaited

[Ken Berry]

I've already pre-rendered the files to the Bluray spec (creating mt2 files).

Welcome to the forums.

Can you right click on one of your m2t files in the VS timeline or library window and copy ALL its Properties here, please. That's just to make sure you do indeed have fully compliant Blu-Ray files. Otherwise, it could be converting, regardless of whether that 'do not convert' box is ticked. It is possible, for example, that you have prepared a file which is using 1920 x 1080 but has a fully progressive frame rate of 50 fps (PAL) or 60 fps (NTSC). In that case it would not be Blu-Ray compliant as the only 50/60 fps video which is Blu-Ray compliant has to be 1280 x 720p. Otherwise, the frame rate has to be 25 or 29.97 fps interlaced or 50/60i not p.

[KenB]

Hi Ken,

Thanks for the quick reply!
Here are my file specs...

[lata]

Hi

When you finally hit the Burn Button the process should start with Convert Menu

If it starts with Convert Title then your files are being Re-Coded / Rendered again.

Try this by using Create DVD Folders: rather than Create Disc, at least you wont waste a disc.

[KenB]

I just tried it. It says "Converting Title". WTF!?

Why does Corel have presets to encode "BluRay" files, then when you want to actually put it on disc, it re-encodes it AGAIN because the presets were non-compliant to begin with!? So FFFIN stupid!

Anyone know what I have to do from this point on, or must I suffer the Curse of the Corel Programmers?

[lata]

Hi

Please confirm you are adding the video files correctly.

Start a New Project –Nothing in the timeline
Share Create disc – Choose Bluray

This opens the burner module, again nothing in the timeline.
Top Left -- Add media-Add Video Files, browse for your MTS files.
For every video added a link / thumbnail will be added to the main menu page.

From the last page, Do Not use Normalise Audio.

Select to Create a BluRay Folder
Pressing Burn should start with Convert Menu.
.
Give me a little time and I will run through the process using X4

[lata]

Hi

Ok I have run through the process using X4 as ok.

I do receive the popup message “ this may take some time” but the process started with Convert Menu.

I have viewed your files properties, for me they look compliant so no reason why they need further conversions?
Unless Ken finds anything odd about them?

[KenB]

Hell, I even tried creating a Bluray just using the .VSP files so that I might avoid the re-encode since I have to wait so damn long anyway, and the thing STILL complained that one of them could not be used because "The file format of C:\Users\Ken....VSP is not supported".

What. The. F? Even it's own file format is not supported? I'm laughing right now, how lame this is.

[lata]

Hi

VSP’s are project files, they are not video files.
If you add a VSP then the process will convert to a compliant video file prior to burning the disc.
You would or course use the second icon from add media, not add video.

Did you follow my workflow?
The process works for me, and I am sure Ken Berry will also confirm that.
So there is something different with either your workflow, your video files or your program.
Have you installed all service Packs for X4?

Sorry but I will be unavailable for the rest of the afternoon, 4 ish, but will read any replies

[KenB]

Iata,

I did follow your workflow, but my only exception is that I did not tick "Bluray folder" option. I do not know what that is for (Is that like creating an .ISO for DVD?). But yes, there was nothing in the timeline. I added my files to the burner program's list.

X4 allows one to add .VSP's for the files to be burned (encoded) to disc, so if I have to spend time encoding, I might as well let the program do it ONLY ONCE for a VSP file...right?

See, I created 4 separate project files, then encoded each of them with a "Bluray" 1080p preset under "Create Video File". There's goes one encode. When I go to "Create Disc", I add those pre-rendered files to the list of stuff to be burned. But then VS just re-encodes them AGAIN, which is wasting time, at best, and degrading the quality in some way, at worst.

I still do not get why it allowed me to add one VSP project file to the list, but then the next one I tried to add it refused because the "format is not supported". VSP is the project file format created only by VS, and there is NO WAY I did anything to suddenly make it "not supported". I want to strangle somebody.

[asik1]

Ken you are missing one important point. VSP files as project files holds no video at all, these are just the "edits" and FX's instructions what to do with the video media files. The Bluray disc holds video files and they need to be rendered to a proper spec.

[Ken Berry]

FWIW, there is absolutely nothing wrong with your video Properties. However, it does seem clear that VS is having problems with at least one of your clips, given that it is trying to re-encode it when otherwise its Properties are fully Blu-Ray compliant. All I can suggest is that you try inserting just one of the clips in the burning module and go through the process, though producing only a Blu-Ray folder at the end, rather than wasting a disc. Then do the same with the other three clips. Time-consuming, yes, but at least that way you would know if there is a problem clip and which one it is. Then you could go back to that project file and try another render of it -- perhaps to Blu-Ray mpeg-2 instead of AVCHD.

[KenB]

Ken,

OK, thank you. At least I know I am not crazy.

Is there a way to burn the Bluray version of an ISO so I can just burn the disc data next time, instead of doing this re-rendering thing all the time?

asik1, I know the .VSP are not videos, but if VS is going to re-render my pre-rendered Bluray files ANYWAY, why not avoid the possibility of degrading AV quality of that problem and just let VS render the file **once** using the .VSP? Of course, I wouldn't have to do any of that if VS would just behave in the first place.

Thanks for trying to help me out, guys. Much appreciated!

[Ken Berry]

VS cannot produce a Blu-Ray ISO, though I don't know why. But the Blu-Ray folder it produces performs exactly the same function and can be burned to disc with a variety of programs, such as the Nero or Roxio suites, or an excellent freeware program called ImgBurn.

[lata]

Hi

There are two basic approaches in editing and burning your video files.
1 / …..
After editing is complete….. we can Share Create disc, effectively we are using the project (VSP) to burn the disc
However the process will render the project to a compliant video file saved to a temp folder, then use that to burn a disc, we can also add a VSP to the burner module, again the project will be rendered, the properties used for this can be seen via the Settings Cogwheel.

2 / ……
It is recommended by most forum members to first render your projects to a new video file.

Share Create Video File choosing the appropriate template. If your original video files are Bluray compliant then rendering to same properties may be the best option.
Share Create Video File –Same as first video file could be used

Once the video file have been created we can play them to check quality, if ok…
To Burn the disc
From a New Project—Share Create Disc -- Bluray will open the burner module, here we add our video files, not VSP.
Do not Convert Mpeg is selected by default, make sure this is selected. (ticked)
The burn process will start with Convert Menu. (Should Start with Convert Menu)

If we choose to Create a Folder, this will save the disc files to the hard drive rather than to disc, saves on making those coasters.
The Folders can be played to view quality, using the appropriate media player will also play the menu, just like playing a disc.
Once satisfied that the video is ok I use ImgBurn to burn the folders to disc.

You are correct in thinking the folders are similar to creating an ISO/TS folder for DVD.
Once created we can burn multiple copies of the disc without further conversion/rendering.

The time taken to do both methods is about the same, with method 2 we can play the video to test quality.