HD files play for several minutes then stop

[tiktaalik]

I have a lot of video files stored on hard drive that were created using Slysoft Clone DVD. Almost all files play without error. Others play about 20 minutes then quit. Maybe it was originally where a intermission was created? Not sure. These movies are Sherlock Holmes, Hercule Poirot, and Charlie Chan. The 2 former are from DVD collections originated on Masterpiece Theatre on PBS. The latter is from a collector series not from PBS. NERO media player WILL play these without error. Don't mistake this for a NERO plug. I don't like NERO, and don't want to use it. I merely mean that the files will play without error using a different player.

Has anyone else had a similar issue?