Originally Posted by Vlad Theimpaler
I am wondering if other VRD users have ever seen this at all?
Originally Posted by captain_video
I see it all the time...
Originally Posted by jmonier
I see this (and Audio Frame Errors as well) quite often.
Originally Posted by sitlet
I see this ALL the time with my recordings. I typically get about 10-40 bad frames per hour of recording.
Looks like the glitched OTA recording phenomenon is a not uncommon one, though the cause of the issue seems to vary. None of my recordings, for instance, seem to have issues when the broadcast goes into/comes out of commercial segments. They seem to happen at random within the program itself, and they occur only once in a while, like only once in 10 hours of recordings.
I was wondering if I could mitigate the issue to the point of near elimination by doing anything differently on the HTPC/DVR, like maybe performing a weekly defragging on the HDDs where the recordings go.
Some have replied here that they have not seen any glitches in the final VRD output. My experience has been, however, that if VRD says that video and/or audio frames were removed to maintain A/V sync, then a glitch is present in the final VRD output. They may not be perceptible during playback, as they may affect less than 10 frames (i.e. "blink, and you'll miss it")... but if you are analyzing the output frame-by-frame, they can be spotted simply by noting - for film based programs - where the output exhibits a change in its 3:2 cadence (assuming the source is 24fps/24.976p filmed material that was telecined to 30fps/29.97i for television broadcast).
Thanks again to all who replied. This discussion has been very helpful, to me at least