Hi, Two sections pasted from the current Feature5 documentation say: page 12 Do NOT download the LEAP 10bit version unless you use h264 (it can't render 8bit h264). page 171 38. Cinx and a “Bit” of Confusion Cinx is the exact same program as Cin. The X (x) represents the roman numeral 10 for 10 bit as opposed to 8-bit standard. The third-party library used for x265 must be specially compiled with –bit- depth=10 in order to produce 10 bit rendered output. This build will not be able to output 8-bit depth which means you have to retain the Cin version also. Whatever build ffmpeg is linked to will determine what bit depth it can output. This is why there has to be separate builds. The same is true for x264 but no special build has been created for that; however the user can do their own build. If you install both packages, Cin and CinX, you may get “file conflicts of same file name” - just continue. Keep in mind that the regular 8-bit version works on 8-bit bytes – the standard word size for computers, but the 10-bit version has to use 2 words to contain all 10 bits so you can expect rendering to be as much as twice as slow. There is also a 12-bit version for consideration but currently the results are simply the same as 10-bit with padding to make 12-bit so it is of no value. I wonder if there is a typo above on page 12 "h264" vs "x265" and "x264" page 171, or something I have mis-interpreted? I have both Cin and Cinx installed on the same Leap15 and have the following libx installed: zypper se -i libx26 S | Name | Summary | Type ---+-------------+-------------------------------------------+-------- i+ | libx264-152 | A free h264/avc encoder - encoder binary | package i+ | libx265-151 | A free H265/HEVC encoder - encoder binary | package i+ | libx265-165 | A free H265/HEVC encoder - encoder binary | package ------------------------ As I understand the following url, x264 supports both 8-bit and 10-bit H.264 encoding https://gist.github.com/l4n9th4n9/4459997 and VLC 3.0: Hardware acceleration for H. 264/H. 265 in 8/10 Bit and CineForm https://www.slashcam.com/news/single/VLC-3-0--Hardware-acceleration-for-H--2... In short it seems like 10-bit h264 encoding is better for smaller file size and colors, also for 8-bit video sources.H It is not a HD Blu-ray video standard, but can be decoded on a PC. 10-bit h265 is part of the UHD Blu-ray video format. Thanks, Terje