[Jez Hunziker]

I think I chanced across a solution for this I’m running a 1080 25p Canon 5D DSLR sequence on a i7 Macbook Pro 2012 and after a time without any effects I get stuttering scrubbing in viewer, timeline no matter the playback resolution.

There are two modes for the Mercury Playback Engine. The are:

If I quite and reopen, no problems for a while. weird.

A) Mercury Playback Engine GPU Acceleration
B) Mercury Playback Engine Software Only

I turn the Mercury Playback Engine to software only and no problems anymore. This seems strange as GPU option should be faster.

I think the reason why has to do with the Maximum Render Quality mode setting. Adobe Premiere has a setting called the Maximum Render Quality mode (or MRQ). This is default on if you are running GPU Acceleration and off for software.

Details here…
https://blogs.adobe.com/premiereprotraining/2010/10/scaling-in-premiere-pro-cs5.html

The system is taking on much more quality in the timeline with this on and I think this is causing my cheap Ramm to malfunction.

Not 100% sure but it seems to work with 5D and export gives option of using Maximum Render Quality so All GOOD!!!

Hope this helps

J

[Jez Hunziker]

That’s a shame it would be useful, thanks for your advice.
JEZ