Martin Kacvinsky

I recently bought Komputerbay 1050x 128Gb. I can record up to 8:44~8:48 in 23.976p raw. I tested it few times and it's stops most of the time very close to 8:38 (circa 42.8~42.9 Gb). I also tested my Lexar 64Gb 1000x. It also writes only 42.8 Gb of the data and then stops. The recording works pretty good with the data write more that 85Mb/s up to 8:26, than it falls to 0.x Mb/s and then finally stops. Since these are two different cards, isn't it strange? Any adivce?