I just double checked and there are no chapters on my mp4 (which kinda sucks since I watch it on my PS3 since that's what's hooked up to my good tv/speakers and it doesn't read mkv without having to do conversions which would probably lose the chapters anyway.... oh well, nothing anyone can do about that - except Sony I guess, but they're probably not reading this thread).

As a side note, I also learned from skimming through the file that Piggy on x1.5 speed is really damn funky.