I too have stuck with Opera, though the most recent versions (certainly everything 12 and the tail end of 11) have had me questioning my browser choice.

My chief frustration is some sort of compatibility problem between Opera and my email host (Dreamhost) where a proportion of my mail simply doesn't arrive! I have a work around - all messages show up if I manually "Resynchronise all messages" but it is a real hassle!

Beyond that I have found 12 to be more unstable than previous versions, web compatibility seems to be getting worse, and it frustrates me that newer features of CSS3 and HTML5 are being added significantly slower than in other browsers.

Why don't I change to something else?

Despite the above issue - I still really love having my email accounts in one place, in a proper desktop app, inside my browser.

And every time I try Chrome or FF I spend a day or more installing addons to incorporate basic out of the box Opera like behaviour.

Nice - if only I had a presentation to give.

Replying to my own post…

Just discovered that VLC can do this. There is an option in Preferences (Advanced Mode) under Playlist to "Play and Pause".

Seems that it might be a viable solution for me - but I'd be happy to hear of any alternatives.