Sometimes I just do not bother to label images I burn onto CD’s/DVD’s. The other day I grabbed a DVD that contained a copy of Solaris 10, but I needed to know what release update it was. To find out mount the disc and look at release file in SUNWsolnm package:

bash-3.00# cd /Solaris_10/Product/SUNWsolnm/reloc/etc
bash-3.00# cat release
Solaris 10 3/05 HW2 s10s_hw2wos_05 SPARC
Copyright 2005 Sun Microsystems, Inc.  All Rights Reserved.
Use is subject to license terms.
Assembled 26 September 2005