Preview + encode disaster !

[Selur]

By disk cache, iam guessing you are refering to write caching for SSD/HDD ? Do you?

read-/write cache assigned by the OS.

I could have sworn, the first thing i did when i encountered that preview filter issue = Deselecting → HWencode totaly under input tab..
And that ↑ immediatly solved the problem

That is the mplayer preview, that (normally) has nothing to do with the actual processing.
(removing mplayer dependencies is one of my 'large' to-dos I never get to,...)

I mean, could it be that ffmpegsource2 stores an portion of that media in the ram (or ramdisk)..

nope, ffmpegsource2 only saves the .ffindex file in the temp folder. (might be windows defender or similar)
While creating the index it eats ram.

And just to be sure, u did tried this out using Ffmpegsource2 did you?

The benchmarks: Yes
No clue what you are referring to otherwise.

Cu Selur