> i have tested the yt script on OS4 and it seems that with certain videos
> the extraction is also broken.

Maybe working again with v2.7?

http://www.os4depot.net/?function=showfile&file=video/misc/yt.lha
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=13819&forum=10&start=2