YTD Video Downloader Free running in background
Yes ! 
@penneck & @theosus This thread was started some time ago,.... since then I have found an excellent way of getting You Tube vids, so ditch your downloaders... uninstall them... then go to this page
http://ohsoft.net/eng/ocam/download.php?cate=1002
Scroll down a bit... then click on your preferred option of download. then install it.... You get a desktop Icon... copy that to your lower tool bar. for easy access when your desktop is covered by other stuff.
find your video on you tube.
click the Ocam Icon on the lower tool bar. and you get a green framework appear 
and the "interface" window.... drag that interface away to the bottom right corner and leave it showing only the red Record button..
adjust your video screen size.
Adjust the green frame size to cover the video area that you want to record by dragging the edges...
Highlight/ select. the video title and "copy" You will need this to rename the recorded file shortly.
to Record..... Press the Red Record Button..... ( bottom right corner.... remember ? ? )
The green frame turns to RED.... (you can move the frame whilst recording... BUT you cannot resize while recording )
Then quickly start the video with the white> triangle as normal....
When the video has ended..... press the STOP button.... and your video file will be saved
It will be worthwhile setting up a specific folder "Ocam Saved Videos" or something... for the automatic saving of your videos... you can do this from the Start Interface Menu> Options > Save
And you can "locate" that on the lower tool bar for quick access...
Here is an example of the recorded file ......
Record_2018_12.....etc
As you can imagine, if you are doing several recordings . it will be hard to distinguish without running them... so,.. that is why I suggested "copy" the video title.... so now .,after recording...you can go to the folder and "Rename" the files as you progress...
The only problem/snag with this is, that you must not do anything "on screen" whilst Recording... as this will take precedence on screen, over the video you are recording, and whatever is inside the Record Frame, will be recorded instead... Even if you just move the cursor across, that will be reforded across the video you are recording..
It is not downloading the video per se... it is video screen recording... but it works very well....
I use GOMPLAYER to play my videos..... I use AnyVideoConverter, to convert them to other formats if needed... Or you can use the video converter on "ATubeCatcher"...
@penneck Ah well ! ! ... didn`t realise that you wanted to download so many videos at a time.... Faffing around it my seem to be... but it does "pass the time" quite nicely when there is nowt else to do ! . and once you get into the "routine" it is not so bad as that, really !
