DVD not recognized

Hi Everyone,
I am new to the board so bear with me. I hope someone can give me an answer to this question.
I have a Samsung vr357 recorder. I noticed that if I delete a title prior to finalizing I cannot play the disc on my HP6310T (Windows 7) computer but it will play on my older IBM Thinkpad. (Windows XP). Anyone have an answer… :confused:

Consider using a good player (VLC) andplease don’t crosspost.