4K playback on computer

[Ritchie1]

Hi, just wondering does anyone else have problems playing 4K video back on computers?
I have recorded several videos on my Z2 using the 4K feature, on the phone they play perfectly, however i have tried to copy them to several computers and on each on they just play back all garbled and stuttery, they are completely unwatchable.

I have tried 2 laptops:

1 x Macbook pro mid 2010 with 4GB mem Core 2 Due

1 x Asus Zenbook with 4GB mem and core i5 CPU.

1 x Dell Optiplex with 2.65 dual core and 3 GB mem with 2GB additional graphics memory.

All machines should play this fine and i have tried Windows Media Player, VLC, Quicktime and iPhoto and all with the same results.

My last hope is my iMac tonight with 3.0Ghz i3 CPU and 8GB mem i can stream 4k videos from Youtube no prob and all other videos play fine.

Whats the point in having an Ultra HD recording phone if the videos dont play anywhere other than teh phone!

[biistu]

That is correct.

Playing 4K has nothing to do with the monitor or the resolution your monitor has. It could have 240x120 resolution and you will still be able to PLAY the video.

Also stuff that the end user does not see affects the ability to playback videos. Like has the player and/or codec been optimized to your system during compile time. Buggy graphics card drivers. etc.

[srv1]

Ok, you can play 4K contents on every monitor with right gear, but what's the sens of that? Is this not the same as connect a bluray player to non hd lcd ?

[biistu]

There's no advantage, but you might want to record them in 4k with the future in mind. 4k screens are getting cheaper every day.

[srv1]

Recording with the future in mind, yes that makes sense :smileysmileythumbsup:

[geri]

i am not undestanding well your question u mean u cant see or u cant open videos 

coz i can see my 4k videos on my non 4k screen just needs some coodecs 

[Carrot]

I have a VAIO,I dont know the spec, all I know is it has an hdmi output and runs Windows 7 etc, as you can tell I am a computer specialist! I tried to download 4K video on media player and media go but some of the videos wouldnt download and the rest play the audio at normal speed but the video plays in jumpy segments making it impossible to watch. Some of the video segments have just become pictures instead of motion, hopeless!! I also get messages at the bottom of the screen saying something about CODEC ERROR? Any ideas?  

[Total]

Download the VLC player . (FREE) - it has just about every codec made . . Works for me ..

[PhilJSmith67]

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@srv1 wrote:

You must have 4K screen to play 4K videos. You can't play on non 4K screen.

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Really.  Explain to us how 4K videos play on the phone itself, which has a 1920x1080 display.

[srv1]

I meant what's the sense to record 4K and watching then in non 4K screen. The same as watching Blu-ray movie with non HD set. Just a gimmick at the moment to put 4K to the phone. I don't like downscaling:smileydevil:

OK, someone wrote: "with future in mind". I can understand that...

[PhilJSmith67]

Alright please disregard my prior post.  It was a valid question but my attitude was unnecessary.   

There is a reason today, not just for future use, that you may want to record 4K video.  Let's say you are shooting an instructional video in HD (1920x1080) for how to clean a camera sensor.  While shooting, you keep the camera zoomed out enough so everything you do remains within the frame of the shot.  Great.  But, while editing, you want to zoom in on some of the intricate work, because it's just too tiny for your viewers to see.  If you shoot in 4K (3840x2160), you can zoom into 1/4 of the area while editing, and still maintain crisp HD 1080p video.