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4K .mov playback crash
Posted: 30 Sep 2025 20:21
by bossi
compressed 4K .mp4 and .ts files play fine within Preview Pane .
uncompressed 4K .mov ( high bitrate ) , cause an insta-crash , when Preview Pane tries playing them.
tested on newest vanilla XYx64.
PS.: is Video Playback only possible via Preview Pane ? the Floating Preview shows only Thumbnail of the Video , correct?
Re: 4K .mov playback crash
Posted: 01 Oct 2025 11:52
by admin
1) Do you have a link to one of them?
2) It's possible via WMP. Currently no time to check how to force MOV to be previewed by WMP but there should be a way.
Re: 4K .mov playback crash
Posted: 01 Oct 2025 12:20
by bossi
its from a Video Creation Assets Pack (Bigfilms) . Attached is the Codec info .
there are samples on
https://kodi.wiki/view/Samples
i tried some HQ clips from that site, all play fine.
its just this particular codec
Re: 4K .mov playback crash
Posted: 02 Oct 2025 08:56
by admin
These are many samples. Which one crashes?
Re: 4K .mov playback crash
Posted: 02 Oct 2025 09:19
by bossi
i meant the ones that crash are from the commercial bigfilm assets packs ... via
https://kodi.wiki/view/Samples i tried to provide a similar codec , but there are no exact matches
Re: 4K .mov playback crash
Posted: 02 Oct 2025 09:52
by admin
Okay. Without a way to see the crash here I can't do anything.
Re: 4K .mov playback crash
Posted: 03 Oct 2025 17:39
by bossi
seems a rather rare format mostly used in professional video editing .
WMP as preview handler plays it fine , though i prefer the native XY player.
I have K-Lite installed.
here is a sample file of such a ProRes format if you want to try and make it playable , id cerainly be grateful
https://drive.google.com/file/d/1Dyvp7f ... sp=sharing
currently it just crashes the app if played with native Preview Handler
Re: 4K .mov playback crash
Posted: 03 Oct 2025 17:48
by admin
Tried it, no problems. Plays fine with XY's native viewer in 32-bit and 64-bit. AFAIK I just use K-Lite as well.
When I play it, LAV stuff is loaded in the background, hidden in systray (the two windows below are shown when clicking the icons).
Re: 4K .mov playback crash
Posted: 03 Oct 2025 19:01
by bossi
dang , thx for the info , but still cant understand why WMP would play it back tough

Re: 4K .mov playback crash
Posted: 03 Oct 2025 21:30
by bossi
THX for pointing me towards LAV Decoder ,,, i had to
DISABLE 16bit Y416 Output to make it playable

Re: 4K .mov playback crash
Posted: 03 Oct 2025 21:37
by admin
I guess you tried every box? And that was almost the last one?

Re: 4K .mov playback crash
Posted: 03 Oct 2025 22:09
by bossi
nah , i was stuck with Hardware Decoder , just before giving up i tried doing 8bit only and voila it worked and i know 444 = highres )