Can Anyone play RM or VLC files

I am trying to play RM and VLC files from a directly connected external hard drive. The RM files aren’t recognised at all and the VLC app just opens the VLC app and freezes the ATV, until I reset it. I really thought I had found utopia with all that ATV Flash promised, but to be honest nothing much has impressed with it so far. The only thing it has actually done as described is allowed an external USB drive to be recognised. There are many other problems I am having like mounting a shared drive, which every PC in my house can see except the Apple TV, actually it does see it, it just won’t mount, because I can’t enable AFP. I get a message saying Smart Installer with a 1.0 recovery dmg in documents will fix this issue. One thing at a time though. Real Media files can I play them and how? Thanks.