Help on burning a Blu-Ray disc

[Norm Rehm]

Which will produce the highest quality Blu-Ray disc using Vegas, 1980X1080, 60i at 17mbps or 720P, 60P at17mbps?

If I am asking a stupid question please be easy on me as I have never done this and it is difficult for me to understand.

Norm

[Dale Guthormsen]

Good afternoon,

If I recall blu ray is all interlaced, so any progressive will be made interlacved when it is rendered to go on the blu ray disc. If I recall correctly!!

That being the case a interlaced 1080 image would logically be better.

Perhaps someone else can comment on this.

[Peter Manojlovic]

In your case, keep to the original source as close as possible...

If it was shot 1080i interlaced, keep it so..
If shot 720p, keep it so...

[Dale Guthormsen]

Norm,

Higher bit rates give you a better image.
Your properties should be set for what you shot you video with.
Then you will render it to a m2v file using the mainconcept 25 mbps preset, render the audio AC3 with the exact same name. then you drag it into DVD aRc.

If you are working off the burn in Vegas just use the mainconcept 25 mbps preset and you are good to go regardless what you shot it in!!

Hope this helps a little.

[Randall Leong]

Originally Posted by Dale Guthormsen

Good afternoon,

If I recall blu ray is all interlaced, so any progressive will be made interlacved when it is rendered to go on the blu ray disc. If I recall correctly!!

That being the case a interlaced 1080 image would logically be better.

Perhaps someone else can comment on this.

Actually, it depends on the source footage. If the source footage is 1080i, keeping it as 1080i will deliver the best results.

Blu-ray does support 720p at 59.94 fps (or 23.976 or 50 fps). However, you do not want to cross-convert 1080/59.94i to 720/59.94p unless you have software that does a really good job of downsizing. Most NLEs by themselves (including Vegas), unfortunately, do no better than a mediocre job of this.

And Blu-ray can store progressive-scan videos as progressive. However, there are limits to this (such as Blu-ray can only handle 1080p at 23.976/24 fps).

[Norm Rehm]

Thanks Randall for the reply. If I understand you correctly blu-ray will store 720P at 60fps. I thought blu-ray only stores interlace.

Thanks for your help.

Norm

[Randall Leong]

Originally Posted by Norm Rehm

Thanks Randall for the reply. If I understand you correctly blu-ray will store 720P at 60fps. I thought blu-ray only stores interlace.

Thanks for your help.

Norm

To be specific, Blu-ray stores in their native resolution/frame or field rate the following:

1920x1080i (50, 59.94/60 fields per second)
1920x1080p (23.976/24 frames per second)
1440x1080i (50, 59.94/60 fields per second)
1440x1080p (23.976/24 frames per second)
1280x720p (23.976/24, 50, 59.94/60 frames per second)
720x576i (50 fields per second)
720x480i (59.94/60 fields per second)

[Dale Guthormsen]

Randall,

Very interesting, and I thought that they were all converted to Interlaced before being output. I obviously misunderdstood something along the way.

thank you.