Ave M

I have collected a series of SD dvd ISO files on my hard drive. When I view them using Nero, they play at the correct picture ratio (4:3). When I burn them to DVD+R DL media, using ImgBurn, they play as widescreen. My TV will not alter the picture size to 4:3. The original disks play in the proper picture ratio. Have I overlooked a setting in ImgBurn that would have avoided this situation? Thank you for any help.