When watching Blu-Ray films, every few minutes there will be a short stutter lasting about a second wherein the picture freezes before resynchronising with the audio. Sometimes this will happen every 2-3 minutes, sometimes it'll only happen once in a 30-minute period.
If it was regular (every 40 seconds) I'd suspect a frame-rate issue; if it was repeatable I'd suspect some kind of buffering issue; if it was down to some hardware contention I'd expect it to happen only when the machine was busy. I'm currently wondering if it's a hardware fault, or some background process intermittently spiking load (although surely this would be regular?).
I'm running Windows 8 and have experienced the same issue with PowerDVD 12 and TMT. I've experienced the issue when the machine has been essentially idle otherwise, and also when Windows 8 Media Center is recording HD video from a DVB-S tuner.
My hardware is as follows:
- Intel Core i5 3570K s1155
- Gigabyte GA-H77N-WIFI, Intel H77
- 8GB (2x4GB) Corsair DDR3 XMS3
- 1TB Western Digital WD10EZRX Caviar
- LiteOn IHOS104-06 4xBlu-ray, 8x DVD
- 60GB Corsair Force Series GT, 2.5"
Further to comments below: has happened with two Blu-Ray discs bought from shops. Windows Update is up-to-date, although I'm not sure if it's likely that there'll be lag between vendors releasing drivers and them becoming available via Windows Update?