I'm don't come close to those numbers but the last HD (I'm using internal drives in a HD dock) contained a total of: 1442 folders/16 149 files/2.04 TB space. If I copy all the folders with individual movies and count them, there's roughly 840 movies on that drive. I have 8 other drives with Asian content on. Some drives are backups (I started out making backups of each HD) and some has unique content.
I have recently started to rename the folders to "proper" titles. I use the program Cathy to catalogue my files but it can only read western characters and doesn't really show the proper size for large files.
I'm a bit of a compulsive collector but I have distinct favourites and will delete some content that I don't like. If the actress is in just one scene I usually cut that out with Avidemux and keep that.
I do look for some content with Chinese subtitles that I've seen captures from now and then but most of the time I can't find downloadable files of those. One example is the movie SDMT-738. I know there's a Chinese subtitled version of it on some pay site but I can't buy it (difficult to understand the different methods of payment and I need to have a mobile phone to get a code. I tried contacting them about getting a code to my email but haven't received an answer in 10 days).
Another one is SGV-018. Same situation.
http://video.eyny.com/tag/中文字幕&orderby=date
used to be a good place to download videos with Chinese subtitles but since last month I can't watch anything in any of my browsers (not html5 nor flash).
Anyone have the same problem? I did create an account to see if that helped but it didn't.