Which one to Use for Blu-Ray?

S

slickh

Active member
Which of these two settings will produce the highest quality Blu-Ray disc using Vegas, 1980X1080, 60i at 17mbps or 720P, 60P at 17mbps? Please don’t suggest 24P as I am only interested the two listed.
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.
Thanks
 
slickh said:
Which of these two settings will produce the highest quality Blu-Ray disc using Vegas, 1980X1080, 60i at 17mbps or 720P, 60P at 17mbps? Please don’t suggest 24P as I am only interested the two listed.
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.
Thanks
Click to expand...

Well i find 720P as good as 50i which is the pal F/R,i have done tests and can see no difference in the resolution /sharpness while 720P does not have the drawbacks of interlaced IE jaggies.
 
I assume that shooting at 720P will also produce the highest quality DVD disc ?? Sorry for such newbie question.

If I plan to show my final product on a 60" TV and also burn Blu-ray and DVD discs (more for storage), I assume that I should still shoot 720P, as I haven't really noticed much difference from (my GH2) 1080 24H and 720P on my TV. Thank you.
 
It certainly is unanimous for 720P. Thank you for all who answered.
To help my education would you please explain why 720P is the better choice?
 
slickh said:
It certainly is unanimous for 720P. Thank you for all who answered.
To help my education would you please explain why 720P is the better choice?
Click to expand...

Because interlacing is an evil technology designed for outdated crt displays.
It was created to compensate fo the fact that the phospher's glow would begin to dim before the gun could finish drawing the frame.
 
Put simply, 1080i/60 is actually 1920x540 @ 60 FPS. You have to interpolate the other 540 Vertical lines back into the video. It is basically the same thing as when you scale 720p to 1080p.

Most people think that they are actually seeing 1920x1080 when they are watching good HD on their TVs. The truth is that the actual resolution of the source material is a lot closer to 900x800 than it is to 1920x1080.

No consumer camcorder or digital camera has ever registered over 1000 vertical or horizontal lines of resolvable resolution. In actuality 800-900 lines of resolution is all you can expect for 1920x1080(1080p) video.

Therefore, the best 1920x1080(1080p) video actually resolves to about 900x800. Ironically good 1280x720(720p) video resolves to about the same resolution(850x700). However, when you factor in the deinterlacing and interpolation the 1080i video ends up being closer to 850x650. However, that is actually a lot better than you would think and not really that far from the 900x800 of 1080p.

I question why you won’t use 1080p @ 24 FPS though. Do you have that much action in your videos? If so then the 1080p 80% slow motion mode actually has more detail than the 1080p @ 24 FPS mode. It can also be sped back up to deliver 1080p @ 30 FPS without audio though.
 
Jockomo said:
Because interlacing is an evil technology designed for outdated crt displays.
It was created to compensate fo the fact that the phospher's glow would begin to dim before the gun could finish drawing the frame.
Click to expand...

"Outdated". It is more like obsolete or non-existent. Does anyone still have one of those CRT dinosaurs that works? I would have thought they had all burnt in by now.
 
Mpgxsvcd, thanks for taking the time to explain. What confuses me is I thought that Vegas renders to blu-ray as interlaced. So would that not degrade any video that was shot progressive?

As for your question on why I won’t use 1080p. I am not a movie maker so I don’t care about that look. I am retired and we go to a lot of events, some with action and some not too much. What I am trying to achieve is the best quality blu-ray that I can make with my equipment.

I do not understand why 1080P 24FPS at 80% would show more detail. Would it not still be blurred? Does the audio work at 80%? Would I be able to sync it with external audio?
Thanks for your help and time.
 
mpgxsvcd said:
Put simply, 1080i/60 is actually 1920x540 @ 60 FPS. You have to interpolate the other 540 Vertical lines back into the video. It is basically the same thing as when you scale 720p to 1080p.

Most people think that they are actually seeing 1920x1080 when they are watching good HD on their TVs. The truth is that the actual resolution of the source material is a lot closer to 900x800 than it is to 1920x1080.

No consumer camcorder or digital camera has ever registered over 1000 vertical or horizontal lines of resolvable resolution. In actuality 800-900 lines of resolution is all you can expect for 1920x1080(1080p) video.

Therefore, the best 1920x1080(1080p) video actually resolves to about 900x800. Ironically good 1280x720(720p) video resolves to about the same resolution(850x700). However, when you factor in the deinterlacing and interpolation the 1080i video ends up being closer to 850x650. However, that is actually a lot better than you would think and not really that far from the 900x800 of 1080p.

I question why you won’t use 1080p @ 24 FPS though. Do you have that much action in your videos? If so then the 1080p 80% slow motion mode actually has more detail than the 1080p @ 24 FPS mode. It can also be sped back up to deliver 1080p @ 30 FPS without audio though.
Click to expand...

this part

Therefore, the best 1920x1080(1080p) video actually resolves to about 900x800. Ironically good 1280x720(720p) video resolves to about the same resolution(850x700). However, when you factor in the deinterlacing and interpolation the 1080i video ends up being closer to 850x650. However, that is actually a lot better than you would think and not really that far from the 900x800 of 1080p


confused me
 
mpgxsvcd said:
"Outdated". It is more like obsolete or non-existent. Does anyone still have one of those CRT dinosaurs that works? I would have thought they had all burnt in by now.
Click to expand...

For standard definition CRT still offers far better picture quality than any LCD or Plasma screen. The only reason I changed to a Panasonic LCD was to view HD content, but for SD (still the majority of TV output) a properly setup CRT will still look great.
 
Energy80s said:
For standard definition CRT still offers far better picture quality than any LCD or Plasma screen. The only reason I changed to a Panasonic LCD was to view HD content, but for SD (still the majority of TV output) a properly setup CRT will still look great.
Click to expand...

yeah everything looks real good on my little JVC hi res CRT!
 
Energy80s said:
For standard definition CRT still offers far better picture quality than any LCD or Plasma screen. The only reason I changed to a Panasonic LCD was to view HD content, but for SD (still the majority of TV output) a properly setup CRT will still look great.
Click to expand...

Just curious what country you live in? In the US everything is in HD now. News, Sit coms, Sports, Weather, Music, Reality TV, Trash TV....etc. I don't know anyone who owns a CRT TV anymore.
 
flinty said:
this part

Therefore, the best 1920x1080(1080p) video actually resolves to about 900x800. Ironically good 1280x720(720p) video resolves to about the same resolution(850x700). However, when you factor in the deinterlacing and interpolation the 1080i video ends up being closer to 850x650. However, that is actually a lot better than you would think and not really that far from the 900x800 of 1080p


confused me
Click to expand...

Just because the video is 1920x1080 doesn’t mean that it can resolve the detail of 1920x1080 lines of resolution. In actuality it is closer to 800-900 lines for 1080p video. That is roughly half of the horizontal resolution of the video frame.

The reason that the cameras are not able to resolve the full 1920x1080 resolution could be due to a number of things. The glass, scaling, and filters all affect the actual resolvable resolution.

In the end you really don’t get the full benefit of 1080p video over 720p video because their resolvable resolutions are much closer than most people realize. However, both of them are quite good.

The best way to test all of this is to record a bunch of clips of the exact same scene. Just randomly switch between 1080i and 720p so that you won’t remember which clip is which. Then play back the files in the same player and try to determine which one is 1080i and which one is 720p. If the 1080i one is properly deinterlaced then you won’t be able to tell the difference. If it isn’t properly deinterlaced then you will know it. That is why I say just save yourself the headaches of deinterlacing and go with 720p.
 
mpgxsvcd said:
Are you in the US?
Click to expand...

Yup. Right in the heart of the East coast.

But don't take too much out of my comment. I don't watch "News, Sit coms, Sports, Weather, Music, Reality TV, Trash TV" as I don't have cable. I do have a Blu Ray player hooked up to my old Sony TV :laugh:, but only because I'm too cheap to by an HD TV to replace the Sony. Can't justify the cost for the few movies I watch at home (which is basically my studio). Too busy editing, filming, writing.

My partner has a 40" LCD where we do watch a movie or two on the weekend. And final reviews of any work I do get done at her place. (Hope all of this isn't too much information.)
 
stoneinapond said:
Yup. Right in the heart of the East coast.

But don't take too much out of my comment. I don't watch "News, Sit coms, Sports, Weather, Music, Reality TV, Trash TV" as I don't have cable. I do have a Blu Ray player hooked up to my old Sony TV :laugh:, but only because I'm too cheap to by an HD TV to replace the Sony. Can't justify the cost for the few movies I watch at home (which is basically my studio). Too busy editing, filming, writing.

My partner has a 40" LCD where we do watch a movie or two on the weekend. And final reviews of any work I do get done at her place. (Hope all of this isn't too much information.)
Click to expand...

What is funny is that my 7 year old son has no idea what a tube TV is. He will never get to experience the joys of lugging one up 3 flights of stairs. Technology is moving too quickly.
 
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