Where can I find the RMMVB codec for that can be used with Media Player Classis Home Cinema x64 version. I've already installed K-Lite's 64 bit codec pack and Real Alternative, but that doesn't seem to allow me to play rmvb ro rmv files.

try reinstall

I've reinstalled it twice. Everything is in its latest version now.

I've already installed K-Lite's 64 bit codec pack << i use K-lite Mega Codec, no problem

hmm..
just install Real Alternative codec...u can download it on codecguide (d same place u download the K-Lite)
got the same prob as urs before, then after using Real Alternative then can play RMVB file...by d way, try KMPlayer...

only before 7.6.0 k-lite codec can play rmvb files w/o problem but playback got some minor bug but still acceptable. whereas 7.6.0 beta version onwards till the stable 7.7.0 still got huge bug when play rmvb files & other as well.

any1 knows what goin on? http://forum.lowyat.net/topic/892636/+320
i posted the issue each times i tried to move the seek bar forward or backward it will happened like this. but with the new 7.7.0 move forward sometimes ok but if backward sure got mirco audio lag. some certain rmvb got shuttering display. if playing movie bd-rmvb it will lag also. problem mostly on rmvb.

This post has been edited by joanneway: Sep 2 2011, 12:39 PM