Just noticed some reviews complaining about the default, and alas, unalterable 'Commentary' setting fault.
The same thing happened to me tonight using my standard Panasonic DVD player. However, I tried the same faulty disc in my Xbox 360 and it played fine without commentary! So it appears that the problem lies with some discs being incompatible with certain players. My brother watched it (again using the same 'faulty' disc) on his laptop and made no complaints.
I've got the fault on my 40" Sony tv with Sony recordable dvd player. Works fine on a cheap 20" tv with built in dvd player I have in the bedroom. VERY frustrating especially as the disc as a Sony disc.