Very few HD Tuner cards use hardware encoding - the MyHD cards are the only ones I can think of off the top of my head.
The only PC DTV devices with hardware encoding are the OnAir (formerly Sasem) usb models (the older "OnAirUSB-HDTV" and the current "OnAirUSB HDTV Creator"). This applies ONLY for analog inputs (analog TV or A/V ). Digital streams (Mpeg2 TS) do not require encoding to MPEG2.
The MyHD cards have an onboard MPEG2 decoder
(the Zoran/Terralogic Janus IC .. TL880) ... there were several other manufacturers that also created hardware decoding DTV cards (Hauppauge, Sasem, Telemann, DST, iTech....). Besides MIT (manufacturer of the MyHD cards), I believe only iTech (AccessDTV card) continues to offer such solutions.
Originally Posted by sic0048
I'm going out on a limb here, but all the other Vbox tuners that I've seen utilize software encoding and have drivers that are compatible with MCE, so I will have to assume that this tuner will act the same.
It is most probable that it will rely upon an approved MCE software encoder (likely Intervideo or Cyberlink), thereby probably circumventing the need for a seperate analog card with hardware MPEG2 encoding....however, there is a slight chance that it does have hardware encoding (outlined reasons here
)...but my money would be on software encoding.