Disc image is a virtual copy of a physical optical disc which represents its data and partition and can be used to substitute the real disc.

Mounting is a process that makes virtual image available for use. This operation is similar to insertion of the physical disc to the physical drive.

Unmounting is a process similar to ejection of the physical disc from the physical drive. DAEMON Tools Lite 10 removes the virtual drive while unmounting an image.

Emulator is a software that makes virtual drives appear to the operating system as physical ones.

Emulation is a creation of virtual drive that imitates the physical one.

Images catalog is a part of DAEMON Tools Lite functionality used to store all your images at hand. Since DAEMON Tools Lite 10, you can add images to catalog both manually and automatically.

Image converting is a way to save image file to another format.

VHD is a virtual hard disk &mdash a representation of the whole data and partition of the real hard disk drive.

RAM disk is a formatted part of random-access memory that is commonly used to achieve the highest performance.

TrueCrypt file is an encrypted container used to store private files.

iSCSI is a protocol that allows sharing and connecting to the remote devices, both virtual and physical.

iSCSI Target is a virtual device that is located on iSCSI Server.

iSCSI Server is a remote storage that gives clients access to certain virtual devices.

iSCSI Initiator is a client that connects to various servers and work with the remote targets.

.mdx/.mdf — image file formats, developed by DAEMON Tools team.