Making a digital "mixed tape"

Hi All.  I am putting together a playist for a memorial ceremony for a friend and am using Jriver v 21.0.9 for music management on my laptop.  However, the intended "mixed tape" needs to be saved in a format that other machines can play without having JRiver installed. The "mixed tape" could be in any format (MP4, wave, flac, anything) - though I am assuming all songs should be saved in the same format. On JRiver, I see how one can save the contents (e.g. library) or a playlist to a file, and see that I can export a playlist to a burnable CD, but in this case, I want to export the music to a single file on my hard drive, and then share it with the guy doing the video for the memorial.  Any help would be most appreciated.  Can I do what I need in JRiver?  If not, what other (preferably free) software would do this. If I recall right, I think iTunes might do this, although I'm not psyched to install iTunes on my Dell laptop.

Thanks, Peter