Question about the Galaxy S5

For the general user, nope, it works the same. But the stuff that goes on backstage is different. USB Mass storage is compatible with older hardware and pretty much any other OS. MTP requires drivers, which older equipment might not have available and Macs don't like to play nice with MTP (which is why you need the phone's software, usually).
 
For the general user, nope, it works the same. But the stuff that goes on backstage is different. USB Mass storage is compatible with older hardware and pretty much any other OS. MTP requires drivers, which older equipment might not have available and Macs don't like to play nice with MTP (which is why you need the phone's software, usually).

Makes sense. I've never had any issues with drag and drop on a newer device, ND I never really understood why people complained about mtp.
 
It just doenst function as USB Mass Storage.

WI do a lot of videos and when I go thru them and try to play them, it wants to copy to the computer rather than open Windows media player and start playing the video.

Another thing every time I upload a image to photobucket, I browse for the DCIM folder on my phone, and upload my image.
The nest image I browse for I have to re-navigate back to my phone because MTP keeps putting me in the windows temporary folder area....
 
I'm afraid you either have a driver problem or are testing this with a very weird phone... What Windows version are you using? In both Windows 7 and 8.x, MTP behaves pretty much like USB Mass Storage. Sure, you cannot create playlists directly into WMP by drag/dropping but you can certainly just double click and play the video files straight from your phone (just tried it with mine right now). No copying to computer, nada. I tried uploading a picture to dropbox and when I try again, it stays in that folder.

I'm really puzzled by how it's behaving for you :S