Wow, Saying Morcheeba is a portishead rip off is like saying Britney Spears (or whoever else, for that matter) is a Michael Jackson rip off, because they both sing "pop" music. (I guess I'm refering to MJ back in his hayday circa thriller). Yes, both Portishead and Morcheeba get grouped into the trip hop genre, but the reason for that stems more from the fact that they are (or were, originally) hard to categorize rather than they are so similar. If you listen to Big Calm VS. Dummy, the differances are obvious imho, with each group offering a superb album.