At the moment, I only have Astra 19.2E hooked up to my PC. I just after installing the latest version of ProgDVB - v4.55 and had another go at recording Astra HD and Astra HD 2, but both cause ProgDVB to crash out after a few seconds. I even tried with MPEG decoding switched off, just in case the issue was caused by high CPU usage. There was only one version of ProgDVB (v4.24 from what I recall) that would usually record about 30 seconds worth of HD before crashing out. All the recent versions will record no more than 5 seconds for me. Interestingly, what ever it does record plays fine on my other PC (AMD 3000+).
DVB Viewer, which comes with the Skystar2 drive can keep on recording a HDTV channel, however as it hogs the full CPU trying to decode the video, it keeps droping blocks of frames in the recording. I could not see any option to disable video decoding during recording in DVB Viewer.
For other channels, ProgDVB works quite well and I can leave it running over night recording most channels without any issue (especially those with a 6 Mbps or lower stream). From my experience, the higher the channel bandwidth, the more likely it is to crash out during recording. Regular channels with a 8Mbps to 10Mbps stream will cause ProgDVB to crash after about 30 minutes of recording, however it has no problem displaying these channels for several continuous hours (without recording).
I have mentioned the HDTV recording crashing issue in the ProgDVB forum several times as a bug report, however I never got a response. Usually my post ends up being deleted after a few weeks. Maybe they don’t see the need to be able to record HDTV just yet.
When I played back one of the recordings I made on my other more powerful PC, the following image shows the OSD info within Nero showtime. The bitrate typically fluctuates between 18.5 Mbps and 19.5Mbps, occasionally peaking above 20 Mbps. CPU usage is ~60% with hardware acceleration enabled and ~75% without hardware acceleration (PC has AMD Athlon XP3000+ with nVidia GF FX 5700).