Do tell me if this is not allowed so that I'll delete it.
Since YT have removed at least 90% of the Arashi vids already and Crunchyroll is also removing shows as well.. As far as I know, Veoh only deletes all the Music Station vids. So maybe you could try Veoh instead.
I actually have some Arashi vids uploaded to Veoh (no fanvid and stuff though=x).
If you're interested, it's HERE