some links aren't available and hence cant be downloaded

[anush97]

I want to thank you for this Dataset, and just wanted to inform you that when I ran the code, the following URLs were not found.

https://download.ted.com/talks/QuyenNguyen_2011P-480p.mp4?apikey=acme-roadrunner
https://download.ted.com/talks/MindaDentler_2017W-480p.mp4?apikey=acme-roadrunner
https://download.ted.com/talks/AngelicaDass_2016-480p.mp4?apikey=acme-roadrunner
https://download.ted.com/talks/AlanEustace_2015-480p.mp4?apikey=acme-roadrunner