I assume you have this one:
http://www.valkyrie-exchange.com/video-boo...ectEdition.html
If you do, then my answer to:
Apparently not very. Welcome to the wonderful world of HK DVDs.
As always with HK DVDs, they are not accurate as they are a translation from Japanese to Chinese to English, therefore, some of it is lost in translation. They are accurate enough for you to get a good idea of what they are saying however, it is not an entirely accurate translation.