Editing M2TS transfered using the Sony CMU:
From Sony NX5U
.M2TS
AVCHD
NTSC
Profile main
Level 4.0
CBR 17.5 Mbps
1920x1080 23.976 fps
square pixels
Audio interleaved
Sample 48000 Hz
2 Channels
PCM or Dolby Digital 256 kbps Not sure here.
Drivers updated, and tried different ones.
Also happens on another computer with similar specs and quadro card, but plays as jittery jumping like it is trying to fight over playback of two video and audio tracks that are out of sync.