Thanks dimesio for the link - that was indeed the issue - the DVD needed to be mounted with the "norock" option! >http://forum.winehq.org/viewtopic.php?t=5912 >Most likely incorrectly mastered CD or even worse - intentionally broken (for any platform using/supporting Rock Ridge extension). >Try mounting with 'norock' option. For some reason - I still don't understand exactly why - the subdirectories were not visible when Ubuntu mounted the DVD. Ubuntu automatically mounted the DVD as a udf file system. $ mount ... /dev/sr0 on /media/cdrom0 type udf (ro,nosuid,nodev,utf8,user=cosmo) However, on Ubuntu at least, the udf file system does not support the "norock" option. I had to unmount the DVD then re-mount as an iso9660 file system which does support "norock" on Ubuntu. $ sudo mount -t iso9660 -o norock /dev/sr0 /media/cdrom FYI for anybody else: this was a multi-DVD install, so I ran the install program from a directory outside of the DVD file system so that I could unmount the current install DVD and swap in another. Each time the installation asked for a new DVD I unmounted the current DVD, inserted the next installation DVD, which then got auto-mounted by Ubuntu, again as a "udf" file system. I again unmounted the DVD, then re-mounted as "iso9660" file system with the previously mentioned command line, before clicking to proceed from the installation program. I'm sure there is a more efficient way to do this, but that's how I did it. Thanks to all who helped with suggestions...Cosmo On Fri Aug 13 9:23 , "dimesio" sent: > >Cosmo Lee wrote: >> >> HOWEVER, I think I may have found the source of the problem. In checking things out on an actual Win XP box I noticed something VERY odd. When >> I explored the DVD with XP, the DVD appears to have 8 hidden folders which do not show up in Linux. Even running `ls -lai` the additional >> directories don't appear. When I viewed the DVD with the graphical Nautilus file browser the directories were also not revealed, even though I had the >> "Show hidden files" option engaged. >> > >http://forum.winehq.org/viewtopic.php?t=5912 > > > > >