Are you using Notepad to edit the envmap rcm file? Try changing the format to MS-DOS format when saving it as rcm. The usual format seems to screw it up somehow and BF42 pukes all over it.
By the way, I use the debugger to pack the files using batch files I created for that purpose. Nothing beats using the original game engine to pack it. It's 100% guaranteed not to be the source of any problems if your looking for a problem free RFA packer.
What's the folder name of the mod your attempting this in? Once I get the file path working for my mod I can change it to yours and send you the RCM File. I presume the same BIK video will be used on all sides of the envmap cube...
Also you can try linking to the BIK video via the command present in the map's init.con instead of using an RCM file. The game appears to consider the RCM file as a texture and I did manage to apply it to a mesh like a normal texture would in some experiments I did with it a while back. It may work the other way around. You might able to refer to the BIK file instead of loading the RCM file.
EDIT: Hmm...seems Windows 7's version of Notepad has different save options. I'll try the default ANSI format, but if that not works, then I will copy over WinXP's version of Notepad and try that one.
