This tracker has good pretimes on new bluray-original discs. Sometime you can see HDChina is the first who releases those blurays among Chinese trackers, and HDChina is normally the first who unlease the speed. So many encode groups choose HDChina bluray disc as their sources.
HDChina is a very nice tracker in terms of blurays.

And one thing is that HDChina is one of Chinese trackers who usually keeps bluray discs being seeded for a very long time.