This is a big one for me. I actually miss the micro-player built into the OS of Windows 98 and on. There was no start up time. No big bulky program that had to go get a webpage from the net before it played the file, it just played it!
A quick, out site player definitely should be the default. Not something I have to go back and reconfigure my file handling for because the media player is obliged to tell me the latest news that who knows has decided is more important then playing
the file I just clicked on.