I have combined several VOB files from a DVD into one VOB using DVD Decrypter and when I select and play the combined VOB file it will freeze. If I pause the VOB file and then press play again it will continue to play for a awhile but it will freeze again and you have to repeat the process of pausing and playing. I noticed when this occurs it seems to be at a chapter point in the VOB file. The elapsed time counter resets to zero and then begins to count up after a freeze. Does anyone have suggestions on how to resolve this issue? Thanks for any help in advance.