To summarise, it is important to know that PS4 has its limitations considering the fact that you cannot play DVDs without the internet if you have not enabled Disc Playback Feature. And to enable this feature, you require a good network.
However, this is a one-time feature, which will give you access to use your DVD on PS4 without the internet. Additionally, PS4 is built to support USB plugs that can transfer files from your PC to your PS4. It is a hassle-free task.
Thus, another alternative to accessing DVD files on your PS4 is also by using your flash drives. For this method, you will have to take the help of software such as Wonderfox DVD Ripper Pro to digitize your DVD files portably.
Therefore, the step-by-step points are briefly mentioned to help you get the hang of the simple technical system and effectively learn how to play DVDs on PS4.