starman345

I can only tell you my experience with my cards, hopefully someone else will add their experience with other cards.
The Dvbworld 2004PCI dvb-s2 card works with full functionality with Dvbviewer, diSEqC1.2, and switch control. It also works with Dvbdream in that it will tune and play channels but I can't move my dish or switch my DiSEqc Spaun 411F switch. The Dvbworld 2104 USB dvb-s2 card will tune and play channels with Dvbviewer and can move the dish and switch the switch as well. It is fully functional with Dvbdream, will move the dish and switch the switch. Both of these cards have full functionallity with the latest MyTheatre 4.0 beta.
I haven't had much luck with either of these cards and Altdvb and I've never tried SmartDvb so can't comment on that.
Not sure if you are aware but not all codecs will display 4:2:2 signals. You will need Elecard, Dscaler, or FFdshow, there are probably a few others but those will work for sure.
I've had quite a few cards over the years and I find the Dvbworld cards compare very well and have very nice sensitive tuners in them, I think both the above mentioned cards have the same tuner. The drawback is that they are very hard to find, you can buy them direct from Dvbworld in China.