Probably more relevant here than software... I have ripped several DVDs (TV series). The source vobs are 29.97 FPS. I encoded this in handbrake (h264, AC3 passthrough, same as source FPS) and the output is a 23.976 FPS video. The videos are 40 mins each. I know this is down to 3:2 pulldowns etc, but tbh I'm not sure I understand it Are the videos likely to be out of sync (they look ever so slightly so) and will I have lost anything quality wise (dropped frames etc? - allowing for the encoding obviously). Thanks. Any advise appreciated before I re-rip and force it to encode at 29.97 FPS.