If you are trying to make a dvd-video from these Real format videos, the end result should be a set of .vob, .ifo and .bup files within a Video_TS folder. If the video is larger than 1gb in size after converting to dvd-video, you should have more than one vob file. They will be 1gb max for each vob file.
When you burn dvd video to a disk, you need the entire Video_TS folder and you need to burn with a program that is capable of burning dvd-video. I suggest ImgBurn. www.imgburn.com
If you have an Audio_TS folder, it will be empty, but it doesn't hurt to include it as well, when you burn to a disk.
What program have you used to convert the Real video to dvd-video?