Now days most applications are bought on the internet. Basically they need to download certain amount of data they use for their apps.

Most of apps uses the .iso, .nrg format or .zip etc. Most known are .iso files which need special apps to download for Mounting it as DVD drive.

Its the same if you mount iso file or buy external dvd.

There are many apps to provide that function, but I mostly use PowerIso.

So there is no need to spend money on externals.

Here is a manual how to use it:

That video I found on youtube its not made by me.

Greetings hope this helps you.

You'll either need an external DVD drive, or to copy the contents of the install disc to a flash drive using another system that's equipped with a disc drive.