[vdr] Question about recording

[Dylan D <maxattack@optushome.com.au>]

Hello All

Im gonna build a vdr system my question is.

The cards im interested in "The DTV-A1 receives an MPEG-2 compliant
Transport Stream and delivers it to the PC via the PCMCIA interface.
Software drivers are provided to enable PID and section filtering."

My question is i want the ability to watch a show and record it at the
same time. Over here we are dvt-t . (Australia) . Do i need 2 cards to
do this and can they be this one ?. OR  do i need a card with built in
mpeg decoder ?. I thought the same type would be fine as one will only
be used for recording ? but not sure.. I was told U needed two cards for
this or is 2 card to record one show WHILE watching another 
?? 


Any information on this would be great.
Thanks 
Dylan