Suggest checking your back of copy of "The day after tomorrowâ€ with DVDInfo Pro (http://www.dvdinfopro.com) or similar software utility program for CRC Read Errors. If you have CRC Read Errors is an indication that the particular DVD media you used to make your back of copy "The day after tomorrowâ€ is suspect. This means you need to use good reliable DVD media like Taiyo Yuden when you make your back up copies.
Your stand alone desk top DVD player canâ€™t read a DVD that has CRC Read Errors and thatâ€™s why your this back up copy of "The day after tomorrowâ€ will not play. Your back up copy of "The day after tomorrowâ€ will play in your PC because your PC â€œReaderâ€ is more tolerant and can ignore CRC Read Errors.