Disk management involves drive, partition shrink/expansion/deletion, recovery, backup, cleanup, etc,. features.
EASEUS Partition Master 6.5.1 Home edition is a complete Free software package that provides you most of the basic disk management tasks.
With increasing use of .iso format for software distribution, one has to write it to a disk to create a bootable installation disk. Writing to disks and maintaining them is a costing task. The effective and most easiest way to use virtual drive tools to create a virtual drive. Then simply mount iso on the virtual drive. There are many freeware virtual disk tools available and I use and prefer Deamon-Tools Lite Free and it simple works great.
-Govardhan