Black Majic created avi files.

Hi Theo,

>Without codecs, import of standard AVI goes ok.

>With BM drivers and/or Xpression drivers, import is very slow and Premiere reacts very slow.

The fix seems to be "avoid using these specific third party codecs", which isn't something Adobe can control.

I have an update with this problem.

If you have Black Magic drivers or Ross Xpression AVI drivers installed, Premiere gets in trouble if you import these AVI files.

I compared my system with and without these drivers/codecs.

Without codecs, import of standard AVI goes ok.

With BM drivers and/or Xpression drivers, import is very slow and Premiere reacts very slow.

I have a link with a BM avi file and a screen recording of the problem.

https://tkooijmans.stackstorage.com/s/SbNhQujTtewNiKcX

The Black Magic software,

https://www.blackmagicdesign.com/support/family/capture-and-playback

CC2023.6 works fine with BM avi files and Ross Xpression avi files.

CC2024.1 and higher gets very slow with importing these AVI files, also playback is a huge problem.

There is much more harddisk or network load when you try to playback, it's like Premiere restarts to import everything again and again.

CC2024 does not handle external AVI codecs very well anymore.

Please fix this problem!

It's still a problem with latest Premiere beta.

Ah, I see what happened.. that should have said Control + SHIFT + F11. Sorry for the confusion. 

Further info: The BMD drivers download package has, in the past, included PPro plugins that handle import and export of BMD-specific formats; Tom's questions are relevant, even if you you're not using BMD hardware on that system. 

Ah, interesting.. so if I put the latest Blackmagic driver on my system I see the issue so anyone experiencing this issue with the BM software installed need not try my steps mentioned above. However, if you DO NOT have the Blackmagic software installed and are seeing this issue it would be really helpful for you to follow those steps so we can scope the size of the issue. 

I believe the person that marked my answer correct was doing so to promote my request for additional information. Both Bruce and I have been unable to reproduce the issue. I do not doubt there is an issue but what it is and why it doesn't happen for us is unclear. You having a laptop without the Blackmagic drivers suggests that they are not the key to the repro as we thought they may be - though they may still be A way to repro. I'm hopeful if you follow the steps in my previous post that we'll get some information that will allow us to further diagnose the problem. I do believe that there is a 3rd party component involved here. That's not to say that isn't something we might be able to fix - as you noted it works in 23.6.2 but not 23.6.4.. there were a very small number of changes between those releases so that is actually really helpful info. 

The file has the same problem in a laptop runing PP without the blackmagic card.  It is running 24.2.1

Like I mentioned theres no problem in 23.6.2 but its there in 23.6.4

No issue in 24.1 - but its there in 24.2.1

It is there in the current beta.

I don't understand how Tom's answer is correct.  Are you saying Blackmagic has an /avi codec that is interfering with premiere?