Super Receiver - The only downer: ORF

With this receiver I am very satisfied, image top, usability super, also criticized in various forums SFI search (you are a movie / shipment and the S2 scans the channels when the desired track where running) works for me without problems ,

For ORF-seer but there is something to consider: I got me from the ORF can send the smart card (with the receiver brand and type), trying to insert the card into the smart card slot. "Wrong Card" has been displayed. According to a research on the internet I came to the conclusion that the ORF uses a different encryption method than the S2. So you need an extra module to receive ORF. Now I wanted to ask if anyone of you receives the S2 ORF and which module is recommended? If I have understood correctly, one should indeed make a detour around CI + modules. Now the question: which modules are available and which work best (even with recording, etc.)

Thanks in advance