http://bugs.winehq.org/show_bug.cgi?id=7578
--- Comment #10 from Louis Lenders xerox_xerox2000@yahoo.co.uk 2007-08-29 16:14:59 --- For vidc.i420 i think you have to set it to "msh263.drv" and copy that from a windows partition to system32. I'll have a look tomorrow to that.
Anyway, it looks like you'd better file a bug against the codecs installers in wine. They seem to be the problem here. For that we'd have to check, how they install in windows, and if the installation in wine (registry-keys basically) differs from that in windows
I'll have a look soon