Not sure about the Spanish domain, but there's a problem with VideoTube being that it's registered on .ORG. The .ORG is traditionally used by churchs, various groups and non-profits. The name lends itself more toward a video aggregation type development.
SORDERA mid xx hopefully a native speaker will add on. Its a pleasent sounding name. It might have the problem of someone not wanting to name there new product this because of the deafness meaning.