Digital Glossary - V : eBay Guides

VBR - Variable Bit Rate. The bit rate changes depending on information content and allows for a consistent picture quality.

Viacces - A digital coding method

Viewer Preference - During installation routines, the television set or set-top box allows the viewer to set the preferred mode for viewing non-compatible aspect ratios on the display.

Virtual Machine - A virtual machine is a software concept whereby applets and programmes can be written which are independent of the microprocessor they are run on, so called 'platform independence'. The virtual machine takes the unified 'bytecode' and interprets it for the particular hardware it is running on. This is particularly important for digital terrestrial television, where there will be a plurality of hardware from different manufacturers as techniques rapidly evolve.

Voltage Switched LNB - Combined LNB/polariser commonly found on Astra systems with polarity selected by changing the voltage supplied to the LNB

VSB - Vestigal Side Band