Nice.Signal strength has never been a problem to me, I'm usuing a 1M dish in a 45CM area.
...though be aware that there is such a thing as signal being too strong.
In general it isn't fair to compare different tuners like that. Different hardware (chips, board designs), firmware (settings, algorithms), drivers => different behaviour. What is fine for one is not guaranteed to be fine for another.This never used to happen with the Skystar USB box either, although sensitivity matters.
My guess would be that the time of the problem is relative to the time of an event occurring on your PC (eg. virus scan) rather than to the start of the recording. If I'm right, the time - 10 minutes, 20 minutes... whatever - is nothing specifically to do with the tuner and everything to do with when the recording starts in relation to this troublesome event.The corruption happens at any time after 20 minutes usually, sometimes as low as 10 and sometimes later. Most of the time it is 20 minutes in though.
Okay, that should be fine since you're recording to D... as long as you're not running some I/O intensive process involving the D drive (eg. virus scan, video editing) while the recording is occurring.Hard Drives are 30 gig free on the system SSD and 600gig free on D:.
This (along with MS Security Essentials) can be really troublesome if not configured correctly....Windows Defender...
I'd recommend to run resource monitor during the recording and monitor the HDD load.