Make sure to upload the Video_TS folder and all it’s contents as well as the Audio_TS folder.
Video_TS folders contain all the necessary files for DVD-Video masters. An Audio_TS folder must also accompany this folder. The Audio_TS folder will always be empty except in the case of DVD-Audio. This method is an acceptable, and proven, master but the DDP master is best if you wish precise control of the layer break location and region codes.