System Administration Guide, Volume 1  Volume Management
Provides Access to CDs  The arrangement for CDs is similar,
except that the block and raw directories are labelled /dsk and
/rdsk, respectively, and the CD-ROM device is actually located
one directory beneath them.   In the illustration above, the
additional directory is named c0t6. That simply reflects a
particular system's device naming conventions. The directory
name on your system could be different, though it would have the
same format.  The CDs themselves, however, follow a convention
similar to diskettes, in that they are mounted beneath the
directory belonging to their device:   As a result of this
arrangement, a system with one diskette drive and one CD-ROM
drive would have the following /vol/dev file system:
(Actually, /vol/dev includes an additional subdirectory named
aliases, but that is described later in this section.)