Here is the 1.28.2.6 viewer
Voice hasn't worked for a while but it's fixed now
I haven't noticed cause I don't use it, and apparently not many others do either since no one has commented.
https://cattencarter.com/CoolVLViewer1.28.2.6.zipMD5(CoolVLViewer1.28.2.6.zip)= 5dfa019e08907d8d6cd0fcee03ccfe0a
SHA1(CoolVLViewer1.28.2.6.zip)= f2852d63a2bb3762f0f1e73e96e93d6c9255b75e
You will need to install the gstreamer package to play movies.
You can get it from here:
https://gstreamer.freedesktop.org/data/pkg/osx/1.16.1/gstreamer-1.0-1.16.1-x86_64.pkg