[Koying]

Here is a test file to find out whether your videos are shown in 4K or are downscaled/upscaled: http://www.semperpax.be/owncloud/index.p...2d37d80095

Look at the highlighted section on your screen.

If the purple text is legible, like:

You have true 4K playback.

If it looks garbled like:

The video was downscaled somewhere in the playback chain.

Picture credits to david.kennedy

[wrxtasy]

Spring clean time - combining threads...

Here is a test file to find out whether your videos are shown in 720p or 1080p: http://www.semperpax.be/owncloud/public....a6280621a9

Look at the highlighted section at the bottom right.
(View images at full resolution)

If it looks crisp like:

You have true 1080p playback.

If it looks blurred like:

It's upscaled 720p.