QuickTime verifying large video files

[497902]

QuickTime in macOS 10.13 doesn't seem to like large (a few gigabytes in size) video files. Every time I open one of them I have to wait half a minute so it can verify the file. It happens to both H.264 and HEVC videos. Does anyone else have the same issue on their system?

 

[cookies!]

Same here. It's driving me absolutely insane. Doesn't matter what player I use either.

 

[kentlim]

Same issue here! Hopefully we get a fix soon.

 

[FCX]

There is another thread here reporting same - High Sierra upgrade install vs. clean install may be a factor. Which did you do?

 

[SoYoung]

Same problem here. My computer seems slower since updating because of this.

 

[Quu]

Same issue here whenever I access video files over a network share it wants to verify them. Very annoying problem. Not found a solution yet. I upgraded from Sierra to High Sierra.

 

[kentlim]

Mine is an upgrade, not fresh install.

 

[Oberhorst]

Not only QuickTime, opening large videos with Movist or VLC results in the same annoying behaviour. Upgrade from 10.12.
FileVault, GateKeeper, Firewall and even SIP are all deactivated.

 

[kentlim]

Not only QuickTime, opening large videos with Movist or VLC results in the same annoying behaviour. Upgrade from 10.12.
FileVault, GateKeeper, Firewall and even SIP are all deactivated.

Wiped out my system and did a fresh installation. The problem went away. While I'm happy with the outcome, this wasted half a day. Damn.

 

[Kohlsprosse]

Have a look at this thread:
https://forums.macrumors.com/threads/“verifying”-upon-opening-every-file.2065395/

 

[SKRS_411]

QuickTime in macOS 10.13 doesn't seem to like large (a few gigabytes in size) video files. Every time I open one of them I have to wait half a minute so it can verify the file. It happens to both H.264 and HEVC videos. Does anyone else have the same issue on their system?

I have the same problem too
Someone plz find soln

 

[kohlson]

I have the same problem too

This seems to be an issue from an early version of 10.13. Are your running 10.13.6?

QT now plays 5 GB video files with no problem - pops them right open.

 

[Lars Nyheim]

Here's how I fixed the problem.

Right click the video file -> Get info -> Open with -> choose another program (f.eks VLC) -> Change all.

After this my video opened in VLC when double clicking the video, and the annoying "Verifying...filename.mp4" box didn't come up.

After you have done this, you can do the same thing again, but this time you choose Quicktime as the default app to open the file type you're trying to open.

I haven't seen any other people actually solving this problem, so hopefully this will help others, too.

 

[SoYoung]

Here's how I fixed the problem.

Right click the video file -> Get info -> Open with -> choose another program (f.eks VLC) -> Change all.

After this my video opened in VLC when double clicking the video, and the annoying "Verifying...filename.mp4" box didn't come up.

After you have done this, you can do the same thing again, but this time you choose Quicktime as the default app to open the file type you're trying to open.

I haven't seen any other people actually solving this problem, so hopefully this will help others, too.

This problem was an old issue with the initial release of macOS Sierra. For what I remember, it was fixed on the first .1 update or a supplemental update released not long after the .1 update.