Playing media from external VS Copying to computer and then playing

I had such great success on this forum recently, that I thought I would try one more question.

I was wondering if someone could shed some light onto this for me.  Here’s the situation.

When I want to watch a movie, I plug in my external hard drive (Western Digitai, of course), copy the movie from said drive, paste it onto my laptop’s solid state drive, watch the movie, and then delete the movie from the SSD.  

I do this for convenience (no cords, I can freely roam around my apartment with my laptop, et cetera) mainly.

I was thinking, though, that it may be smarter to simply play the movie directly from the external hard drive while leaving it connected to the laptop.  That way, instead of reading, writing, reading, and deleting, I could JUST read and that’s all.

I think, originally, a little bit more of my reasoning was something along the lines of, “If I do it my way, I am using less overall TIME (of the drive being used) while reading/writing the movie.”  However, I don’t know if that is really correct.  Just because the drive is plugged into my laptop and on, does not mean it is magically “wearing out” faster, correct?  Also, if I am streaming a movie from the external drive, it is not necessarily being used any more than it would be if I copied the movie to the HDD, right?

I hope this isn’t too confusing, but if it is:

Should I play movies from my external drive OR copy them to my computer and then play them and delete them.


If you are going to be moving the laptop through your apartment while playing the movie, will be better to copy the movie and then unplug the drive.

Now if the laptop will be in a steady place, you can play the movie from the drive without any problem.

Basically is a depending on what you are going to be doing situation…