Would anyone here happen to know how to download MMDs from NicoNico? There are a bunch of Tiger & Bunny MMDs that I would like to download. I've been using this site Vid-DL - but I keep getting a "forbidden" notice for the MMDs that I like. How long does it usually take before a "forbidden" MMD can be downloaded? Is there a program that I can use to download them even if they are labeled "forbidden"?

PS I would prefer to download them without the comments. I've already tried NicoFox and the comments were added.

Thanks in advance for your advice!