1) I tried using the current release and I've used the beta, too. I currently have the 188.8.131.52 beta installed. 2) I tried using the current release and also the beta with the disable LibDVDNav checkbox checked. It didn't help. 3) When I try to make a .m4v version of the DVD, it stops after a minute. the file created it just 70mb. Title of the disc: Angel has Fallen Country: I assume it's USA there is no error message, but I noticed it's selecting chapter 2 which is 8 minutes long. When I try selecting chapter 51, I had to check the disable libdvdNav check box and it worked. Hope this helps someone.