Not really a case of good or bad. Both are similar. Fans of the Japanese version don't particularly get on with the US remake. Definitely a film to watch though, either one.
Bought the new version on Region one. Worth seeing in my opinion and I am pleased to "own" it. (Unlike Narc of which I have so far watched 57 mins and waiting until really bored to watch the rest, if ever)
Ewan - dsw182 is referring to the fact that there are two different films out there (the "US" version is a remake of the original "Japanese" version).
The region is irrelevant in that particular context...
I haven't seen the US version but I have seen the original Japanese version. VERY creepy, I won't spoil the movie but there is an excellent extra on the DVD that really fits the movie!