I got a video-dialog that comes with a Playback-speed slider.

[![enter image description here](https://i.stack.imgur.com/1Y0Uf.png)](https://i.stack.imgur.com/1Y0Uf.png)

The slider holds the values

-16x, -8x, -4x, -2x, -1x, -1/2x, 1/2x, 1x, 2x, 4x, 8x, 16x

Negative values mean reversed playback.

The numbers however, do not correspond with the actual playbackspeed. A video set to 2x playback speed doesn't necessarily playback the video at twice the speed. Depended on the codec, FPS, PAL/NTSC etc. this can fluctuate.

Since we cannot solve this, we opt to change the numbers in the slider to words, similar how VLC does it:

[![enter image description here](https://i.stack.imgur.com/dSfL2.jpg)](https://i.stack.imgur.com/dSfL2.jpg)

Now it's easy to just change the numbers to "slower" "fast" "faster" and such, but i'm wondering how state the reverse speeds. Is it just "reverse slower" and "reverse fast"? Or should I use a different naming for those?