Why does a dl.dropboxusercontent.com download link behave differently?

[Herb N.1]

A friend and I share mp3 files through dropbox though I use dropbox.cm and he uses dl.dropboxusercontent.com. The link I send him looks and behaves differently than the one he sends me. He gets a button to download the file while his link opens Windows Media Player and I must go through a few more steps to download the file. This is non-copyrighted material, by the way. The only way to get his link when clicked is to add a suffix with the characters - ?dl=0 to the end of the link. What gives with this?

[Rich]

He's likely sharing a link from the Public folder, which is a deprecated method of sharing files and only available to older accounts that already had the capability.

[Matthew L.9]

how do you get the share the file with dl.dropboxusercontent.com
I can't seem to do anything to get that

[Herb N.1]

To Matthew L., I use dropbox.com my friend uses dl.dropboxusercontent.com. He tells me that he can create a link on the dl.dropboxusercontent.com website to share an mp3 file that can be downloaded rather than just played by Media Player which is the problem he was having.

[Taher M.]

how to use dropboxusercontent

[Yomi O.1]

How watch the video

[ali r.4]

how watch the video

[ali r.4]

how watch the video for dropboxuserconnet

[Mark]

Ali - there is no video. 

[shrikrishna M.]

I also can't use contents on Google+, the webpage spins and opens an advertisement or stocks to playstore focussing an irrelevant app to download.