sean@sean-XPS-13-9300:~$ youtube-dl https://youtu.be/2_WbgQkTqwk
[youtube] 2_WbgQkTqwk: Downloading webpage
WARNING: Requested formats are incompatible for merge and will be merged into mkv.
[download] Destination: Heavy Machine Gun Fire Sound Effect-2_WbgQkTqwk.f247.webm
[download] 100% of 133.54KiB in 00:00
[download] Destination: Heavy Machine Gun Fire Sound Effect-2_WbgQkTqwk.f140.m4a
[download] 100% of 107.13KiB in 00:00
[ffmpeg] Merging formats into "Heavy Machine Gun Fire Sound Effect-2_WbgQkTqwk.mkv"
Deleting original file Heavy Machine Gun Fire Sound Effect-2_WbgQkTqwk.f247.webm (pass -k to keep)
Deleting original file Heavy Machine Gun Fire Sound Effect-2_WbgQkTqwk.f140.m4a (pass -k to keep)
sean@sean-XPS-13-9300:~$ youtube-dl https://youtu.be/lY2yjAdbvdQ
[youtube] lY2yjAdbvdQ: Downloading webpage
[youtube] lY2yjAdbvdQ: Downloading js player 997fe684
[youtube] lY2yjAdbvdQ: Downloading js player 997fe684
WARNING: Requested formats are incompatible for merge and will be merged into mkv.
[download] Destination: Shawn Mendes - Treat You Better-lY2yjAdbvdQ.f137.mp4
[download] 100% of 37.61MiB in 00:02
[download] Destination: Shawn Mendes - Treat You Better-lY2yjAdbvdQ.f251.webm
[download] 100% of 3.98MiB in 00:00
[ffmpeg] Merging formats into "Shawn Mendes - Treat You Better-lY2yjAdbvdQ.mkv"
Deleting original file Shawn Mendes - Treat You Better-lY2yjAdbvdQ.f137.mp4 (pass -k to keep)
Deleting original file Shawn Mendes - Treat You Better-lY2yjAdbvdQ.f251.webm (pass -k to keep)
sean@sean-XPS-13-9300:~$ youtube-dl https://youtu.be/fWNaR-rxAic
[youtube] fWNaR-rxAic: Downloading webpage
WARNING: Requested formats are incompatible for merge and will be merged into mkv.
[download] Destination: Carly Rae Jepsen - Call Me Maybe-fWNaR-rxAic.f137.mp4
[download] 100% of 56.99MiB in 00:03
[download] Destination: Carly Rae Jepsen - Call Me Maybe-fWNaR-rxAic.f251.webm
[download] 100% of 3.11MiB in 00:00
[ffmpeg] Merging formats into "Carly Rae Jepsen - Call Me Maybe-fWNaR-rxAic.mkv"
Deleting original file Carly Rae Jepsen - Call Me Maybe-fWNaR-rxAic.f137.mp4 (pass -k to keep)
Deleting original file Carly Rae Jepsen - Call Me Maybe-fWNaR-rxAic.f251.webm (pass -k to keep)
sean@sean-XPS-13-9300:~$ youtube-dl https://youtu.be/Ynt6Eh8ufrQ
[youtube] Ynt6Eh8ufrQ: Downloading webpage
WARNING: Requested formats are incompatible for merge and will be merged into mkv.
[download] Destination: How People Think Digital Art is Made...-Ynt6Eh8ufrQ.f248.webm
[download] 100% of 1.61MiB in 00:38
[download] Destination: How People Think Digital Art is Made...-Ynt6Eh8ufrQ.f140.m4a
[download] 100% of 722.92KiB in 00:17
[ffmpeg] Merging formats into "How People Think Digital Art is Made...-Ynt6Eh8ufrQ.mkv"
Deleting original file How People Think Digital Art is Made...-Ynt6Eh8ufrQ.f248.webm (pass -k to keep)
Deleting original file How People Think Digital Art is Made...-Ynt6Eh8ufrQ.f140.m4a (pass -k to keep)
sean@sean-XPS-13-9300:~$ youtube-dl https://youtu.be/fMr4Qm5ZWrI
[youtube] fMr4Qm5ZWrI: Downloading webpage
WARNING: Requested formats are incompatible for merge and will be merged into mkv.
[download] Destination: Windows _ Startup Sounds – Slo-fi Remix-fMr4Qm5ZWrI.f137.mp4
[download] 100% of 106.85MiB in 00:06
[download] Destination: Windows _ Startup Sounds – Slo-fi Remix-fMr4Qm5ZWrI.f251.webm
[download] 100% of 12.91MiB in 00:00
[ffmpeg] Merging formats into "Windows _ Startup Sounds – Slo-fi Remix-fMr4Qm5ZWrI.mkv"
Deleting original file Windows _ Startup Sounds – Slo-fi Remix-fMr4Qm5ZWrI.f137.mp4 (pass -k to keep)
Deleting original file Windows _ Startup Sounds – Slo-fi Remix-fMr4Qm5ZWrI.f251.webm (pass -k to keep)
sean@sean-XPS-13-9300:~$