DC Balance is a stream of data encoded to ensure an equal balance of 1 or 0 . 8b10b encoding has been developed to ensure DC balancing.

encoding

Encoding simply refers to the "encoding" of one single file.

Batch encoding refers to setting up several files to encode one after another. It's basically automated.

the encoding of picture images.

Currently these are the only areas that use 8B/10B encoding: PCI Express * IEEE 1394b * Serial ATA * SAS * Fibre Channel * SSA * Gigabit Ethernet (except for the twisted pair based 1000Base-T) * InfiniBand * XAUI * Serial RapidIO * DVI and HDMI (Transition Minimized Differential Signaling) * DVB Asynchronous Serial Interface (ASI) * DisplayPort Main Link * HyperTransport * Common Public Radio Interface (CPRI) * USB 3.0