I have one of those VCR/DVD players...today I recorded a tv program to a DVD-R and dubbed a VHS to a DVD....after I was done, I made sure both played in the DVD part of the player....which they did. I am mailing these to my husband who is overseas...so I decided to try quick and see if they would play in the portable dvd player because he will be watching them on one...and they didn't work! What is the problem and is there a way to fix it? Thank you for your help!