This has now happened to me on current/i386 with 2 cdrom drives and
2 different makes of recordable cd, so maybe something is up afterall - does
anyone else see the following?

mount /cdrom
ls /cdrom/*/*.ps

everything freezes - need a reboot. Otherwise

mount /cdrom
cd /cdrom/CourseD
ls *.ps                 all OK, and now from memory
cd ..
ls */*.ps               still OK, but not if one did that first before the
                        ls that worked..

Cheers,

Patrick