Trying to convert various flavours of AVCHD (.mts) into QT for AMA import / link in Avid. Simple -vcodec copy -acodec pcm_s16le. No errors whatsoever, and the files play fine in QT / VLC, but Avid introduces artefacts (dropped frames, blockyness) both in RT playback and after transcode. Am i missing the secret handshake? Bouke