[PlanetCCRMA] broken avifile package?

[David Fraser]

Hi

I'm using the RedHat 9 version of PlanetCCRMA and have trouble 
installing avifile

apt> install avifile
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.

Since you only requested a single operation it is extremely likely that
the package is simply not installable and a bug report against
that package should be filed.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  avifile: Depends: libxvidcore.so
E: Broken packages
apt> install xvidcore
xvidcore is already the newest version.

Is there a problem with the package?

Thanks
David