Musical score created with Octava, a German music notation and composition software program; contains staffs, bars, notes, and supports many advanced score formatting options; can be created using a mouse and keyboard or using a MIDI input device.

An OVA package is an Open Virtual Application. It contains files that describe a virtual machine, including an .OVF descriptor file, optional manifest and certificate files, and other files referenced by the application.

OVA files are often used for distributing virtual machine descriptions to multiple users. They are recognized by VMware software.