Why 720p videos have width less than that?

[akhilc47]

Why 720p videos have height less than that?

This is a silly doubt I've been having for a long time. Whenever I get a video file named as 720p or BRrip or 1080p their actual video frame height is less. Like 536 or so for 720p files. My idea was HD is 1280*720 and fHD is 1920*1080. But for almost all these files width is exactly 1280/1920 but height is less. So what's the deal with this? Height is not important?

 

[whitestar_999]

because HD resolution aspect ratio(16:9) is different from cinema/theater screen aspect ratio(2.35:1).unless movies are shot in 16:9 aspect ratio(which is very unlikely) you will get those black bars on top & bottom(aka reduced vertical length) even with original blu-ray disc.

 

[Gollum]

they say 720p to determine the width of the video. which is silly. IMO

 

[flyingcow]

because HD resolution aspect ratio(16:9) is different from cinema/theater screen aspect ratio(2.35:1).unless movies are shot in 16:9 aspect ratio(which is very unlikely) you will get those black bars on top & bottom(aka reduced vertical length) even with original blu-ray disc.

yes...that is why we only get sometimes 800 as video height

 

[Vyom]

Width is important. Its just that most p!rates dont care about the exact height.
Neither do most downloaders.

You can only get so much with p!racy.

 

[flyingcow]

sometimes the 1080 p is referred to the vertical height+black bars...so the whole picture ends up being 1080 but in the torrent description they mention1920x 800p etc..
happened in my case a few days ago

 

[SaiyanGoku]

sometimes, while downloading anime, i've came across encodes which are actually 720*400p resolution and some people call it 720p encodes.
Need to stay away from those kind of people.

 

[Gollum]

sometimes, while downloading anime, i've came across encodes which are actually 720*400p resolution and some people call it 720p encodes.
Need to stay away from those kind of people.

need to stay away from luffy....he's a piratzees

 

[srkmish]

Re: Why 720p videos have height less than that?

i had the same doubt ,but then there is nothing to complain. all 720p/1080p rips look great. yify baba ki jai!

 

[Gollum]

Re: Why 720p videos have height less than that?

i had the same doubt ,but then there is nothing to complain. all 720p/1080p rips look great. yify baba ki jai!

no no, publicHD is the Best. 9+ GB of awesomeness

 

[akhilc47]

Re: Why 720p videos have height less than that?

all 720p/1080p rips look great

ya can't complain. It's just that I sometime check the dimension before starting the movie and it's almost always not true HD. then again can't complain

no no, publicHD is the Best. 9+ GB of awesomeness

I also downloads YIFY and it gives pretty decent quality. Is 9+ GB for a single file? Is it really worth it? I mean I don't have a great display or speakers.

 

[Zangetsu]

@OP: don't worry about the resolutions...whether its 720p or 1080p..

all u need to look for is the bitrate of the video (the more bitrate the more clarity it has)
so a 720p video looks amazing if it has excellent bitrate

 

[flyingcow]

@OP: don't worry about the resolutions...whether its 720p or 1080p..

all u need to look for is the bitrate of the video (the more bitrate the more clarity it has)
so a 720p video looks amazing if it has excellent bitrate

i think both are equally important...what use of a high bitrate video if the resolution is very less?

 

[whitestar_999]

did nobody read my previous post?

most p!rates dont care about the exact height.You can only get so much with p!racy.

sometimes the 1080 p is referred to the vertical height+black barssometimes the 1080 p is referred to the vertical height+black bars

It's just that I sometime check the dimension before starting the movie and it's almost always not true HD.

HD aspect ratio(16:9)=/=Cinema/theater screen aspect ratio(2.35:1,2.39:1,2.40:1)
1280*720 or 1920*1080 are HD resolutions with 16:9 aspect ratio while 1280*536 & 1980*800 are cinema/theater screen aspect ratio which is what you will get even if you buy original blu-ray.this is why you get real 720p & 1080p TV programs because they are not filmed in cinema screen aspect ratio.anything meant for theater will never have 16:9 aspect ratio(aka real 1920*1080 or 1280*720 resolution).

 

[akhilc47]

HD aspect ratio(16:9)=/=Cinema/theater screen aspect ratio(2.35:1,2.39:1,2.40:1)
1280*720 or 1920*1080 are HD resolutions with 16:9 aspect ratio while 1280*536 & 1980*800 are cinema/theater screen aspect ratio which is what you will get even if you buy original blu-ray.this is why you get real 720p & 1080p TV programs because they are not filmed in cinema screen aspect ratio.anything meant for theater will never have 16:9 aspect ratio(aka real 1920*1080 or 1280*720 resolution).

Thanks for the explanation man... I was always thinking movie uploaders are not doing it properly.hehe.. So general movies are not truly full-HD. 2.35:1 is too wide for home screens I guess? Then how come HD resolution get so much hype? Only youtube videos are giving true HD file.

 

[Zangetsu]

i think both are equally important...what use of a high bitrate video if the resolution is very less?

not equally but ya u can say that priority shud be bitrate first & then resolution

 

[whitestar_999]

all HD programs on TV are real HD resolution & the reason for HD hype.people see movies in theater that too once a month or even not that considering current quality of movies but people watch TV/TV programs daily & that's where HD matters.

beside resolution & bitrate there is also quality of display.on a cheap TN panel lcd there is no need for a 5-6gb 720p file(standard 720p size for typical hollywood action movie) as even a less bitrate 2-3gb 720p file will also be fine.

 

[akhilc47]

I generally store <3gb movies (except some 20 or so good movies which I keep 5-11gb prints). I have a laptop which is not fHD but I still keep the files for future purposes. How exactly does a 2gb and 10gb video files differ? Assuming I have a very good display? I'm asking this because if they doesn't differ that much I can save some space. Also does audio have much importance in determining file size?

 

[Zangetsu]

How exactly does a 2gb and 10gb video files differ? Assuming I have a very good display? I'm asking this because if they doesn't differ that much I can save some space. Also does audio have much importance in determining file size?

well, u will have to compare both the videos and 10gb one excels in quality of a 2gb