In the announced expansion plans, VOOM mentioned that it will use new encoders from Harmonic that support MPEG-2 and are upgradable to MPEG-4. For those of you with technical interest, I did some research and it looks like they may be using the "DiviCom MV 100 Encoder:
Specifications:
Versatile encoding platform with increased processing power to support advanced MPEG-2 algorithms as well as emerging compression standards.
Ultra-low bit rate compression capabilities
Multi-pass "LookAhead" CBR/VBR encoding
Advanced filtering and processing
ENRGY™ noise reduction
Supports DiviTrackXE™ statistical multiplexing
Up to six stereo/12 mono audio pairs
Optional: 100BaseT IP output
data sheet
Specifications:
Versatile encoding platform with increased processing power to support advanced MPEG-2 algorithms as well as emerging compression standards.
Ultra-low bit rate compression capabilities
Multi-pass "LookAhead" CBR/VBR encoding
Advanced filtering and processing
ENRGY™ noise reduction
Supports DiviTrackXE™ statistical multiplexing
Up to six stereo/12 mono audio pairs
Optional: 100BaseT IP output
data sheet