Now I am not using Real Alternative at all since K-Lite already comes with the codec I need. So before you install K-Lite, you might want to uninstall all the previous codec first (such as Real Alternative). I just installed K-Lite with the default configurations.
Klite comes with Real Alternatives.
I still can not convert Ray's rmvb file by TMPGEnc Plus 2.54.37.135. But I am okay to convert 原次郎 's rmvb file.
I remembered downloaded a couple of Ray's relaese a long while ago, I had no problem converting if I remembered right.
If you don't want to go the avisynth route, which I think is the best solution, try install a newer version of ffdshow. Klite also comes with ffdshow, but it could be an older version. Set ffdshow to decode all compatable codecs, then move the directshow reader of Tmpgenc to highest priority. This might work.
On a side note, if you have Storm Codecs installed, remove it immediately.