Lord Dalek
Senior HTF Member
- Joined
- Apr 4, 2005
- Messages
- 7,439
- Real Name
- Joel Henderson
They were four track magnetic but the surround channel was just the tones to trigger the LFE decoder. So Left-Center-Right+LFE.The Universal release. I was listening to the DTS HD MA 5.1 track. If I recall correctly, the original prints were 4 track (LCR Surround) magoptical with the sensurround effect keying done via tones on the optical track.