Some information about Acrobat 9. Most are in Traditional Chinese.
BTW, I used FLVPlaybackCaptioning in Flash CS3.
The easiest part is technology (flash video, playback, caption integration). Less than 30 minutes.
The most difficult part is making caption, including translation, voice-and-caption synchronization (e.g. 00:00:03.279), add some expression and transition, transparency of the caption background, regulating size and position, testing again and again. I made this for a whole day.
I do respect to caption makers and dubbing professionals.
For downloading Reader 9, please go to Adobe.com