localhost ~ #  CD_ROOT=/mnt/cdrom && emerge maya
Calculating dependencies... done!

>>> Emerging (1 of 1) media-gfx/maya-6.5 to /
 * checking ebuild checksums ;-) ...                                                                                    [ ok ]
 * checking auxfile checksums ;-) ...                                                                                   [ ok ]
 * checking miscfile checksums ;-) ...                                                                                  [ ok ]
>>> Unpacking source...
 * Found CD #1 root at /mnt/cdrom
/usr/portage/eclass/rpm.eclass: line 46: /mnt/cdrom/AWCommon-6.3-1.i686.rpm: No such file or directory

!!! ERROR: media-gfx/maya-6.5 failed.
Call stack:
  ebuild.sh, line 1614:   Called dyn_unpack
  ebuild.sh, line 751:   Called qa_call 'src_unpack'
  environment, line 3296:   Called src_unpack
  maya-6.5.ebuild, line 67:   Called die

!!! (no error message)
!!! If you need support, post the topmost build error, and the call stack if relevant.
!!! A complete build log is located at '/var/tmp/portage/media-gfx/maya-6.5/temp/build.log'.