As far as I know, there was never an official release of it due to the fact that both the main characters were from different music companies or something and nothing was ever worked out. The cantonese version, being in the 90's, doesn't have any unofficial videos because of the fact that camcorders were larger back then and no one could sneak videos of it. (I've looked around online before also for it) You may be able to find some not-so-great videos of the mandarin release on youtube or something.
The only thing I was ever able to find was an unofficial audio recording that someone had made of the cantonese one.
Hope this clears things up on trying to look for it online.
