Chose preferred TV card for recordings (1 Viewer)

[HTPCSourcer]

TV-Server Version: 1.0
MediaPortal Version: 1.0
MediaPortal Skin: Blue3 Wide
Windows Version: XP Pro SP3
CPU Type: Intel E8200
HDD: WD 5000AACS 500GB
Memory: 4 GB (2 GB Ramdisk)
Motherboard: Asus P5K-E Wifi
Video Card: MSI NX-8500-GT
Video Card Driver:
Sound Card: Soundmax HD Audio (ADI 1988B onboard)
Sound Card AC3: coaxial
Sound Card Driver: 1.6310
1. TV Card: Pinnacle DualSAT 4000i
1. TV Card Type: DVB-S
1. TV Card Driver: 16.04.2007
2. TV Card: Hauppauge WinTV Nova-HD-S2
2. TV Card Type: DVB-S
MPEG2 Video Codec: MPV
MPEG2 Audio Codec: AC3Filter
h.264 Video Codec: Core AVC
Satelite/CableTV Provider: Astra 19.2°E
HTPC Case: Silverstone LC16M VFD (0x3601)
Cooling: Scythe Ninja mini
Power Supply: Seasonic SS12-380
Remote: Harmony 555
TV: Panasonic TH50 PZ80
TV - HTPC Connection: HDMI

Hi,

I realized the following and possibly principal issue in MP. I have one S2 TV card and one standard (dual) SD TV card.

When a preprogrammed recording is about to start I am not sure which card will actually be selected for the recording. If the S2 card is used, watching HD channels parallel to the ongoing recording is obviously not possible. Is there any mechanism which card is chosen or is it arbitrary, depending which one is available at a given time?

Regards, HTPC_Sourcer