I appears that when the backup copy was Burned to the blank DVD media that there was a Write Error to data that was written to the VTS_03_1.VOB file.
I am quite sure if you closely watch the backup copy when VTS_03_1.VOB is played you will notice skipping/stuttering or something similar when played on a stand-alone desktop DVD player. It is possible if you view the backup copy in the computer DVD Burner that burned the backup copy it might possibly play properly.
Suggest using DVDInfo Pro (http://www.dvdinfopro.com) or similar software utility and check the backup copy for CRC Read Errors. In DVDInfo Pro click on the little magnifying glass icon located on the top menu bar on the DVDInfo Pro opening page (Test Your Media For CRC Read Errors). This will test your recorded DVD media for CRC Read Errors. If you find CRC Read Errors in the backup copy you need to re-record the DVD again.
Usually poor DVD media and/or Burning data too fast cause Read/Write CRC Errors.
Some problems caused by poor DVD media can be overcome by taking a couple actions. Slow down your burning speed. Limit all background activity while Burning DVDs including Ant-Virus programs. Defragment your Hard Drive (Start/Programs/Accessories/System Tools/Disk Defragmenter). Check for Spyware by running Spybot-Search & Destroy (http://www.spybot.info/en/index.html)