Rated 5 out of 5 stars

Thanx for creating such a great youtube downloader add on, sad i found it only recently and not before. I usually love downloading youtube videos in 480p and CYS gives me that quality, so thanks again. But i have just one question as how can i download 480p videos through CYS using idm (internet download manager). As it converts and downloads fine using firefox inbuilt download manager but i don't know how can i get to download the full 480p youtube video (audio+video) through the 480p link copied from CYS option using idm. As when i copied the 480p link from CYS option for any youtube video page and put that link in idm, idm downloads the video in an unrecognized file. Since i use idm majorly to download files, it would nice to guide me how can i download youtube videos in 480p using CYS links in idm.

This review is for a previous version of the add-on (5.2.1.1-signed). 

Hi, thanks for the nice review.

Frankly, CYS is not meant to be a front-end for IDM (or any other download manager). With the changes YT made to 480p and 1080p+ videos, it makes little sense using downloaders. On download completion, there are additional steps to take to merge separate video and audio tracks into whole MP4/WebM videos. Downloaders will not know to do this for you - CYS does.

If having to use the command line does not scare you, however, CYS gives you the option to save video/audio links to the clipboard. For DASH formats - ones with separate video and audio links - CYS copies both links to clipboard at once, thus you will need to paste them into an editor, then re-copy and paste the 2 links into IDM separately. Then you will need to merge the separate tracks into complete MP4/WebM videos manually, using FFmpeg on the command line.

Thanks again, and please, feel free to spread the word so others can find CYS earlier!