Still, for users who don't have specialized controllers with hardware Play/FF/RW keys, I think some easy-to-grep play controllers, always visible and easy to access might be handy.
+1... especialy for noobs/less advanced. they hit the down arrow/up arrow for which ever rollbar it would be on, and then they would see the international symbols for controlling the player.
I've mentioned in the past about a top bar and items i dreamt up..
1. a share to bar on top - email, facebook, desktop, ftp, youtube.. (WAY WAY OUT THERE IDEA... but while in position bar having the ability to cut and trim... move slider to begininng, move slider to end, chose cut/send to email/facebook etc...
2. jump to bar...where we could have "hot" jumps.... hit up arrow for top bar, and in there is your choice of pickens... mine would be (places visited most often in jriver Theater View) Music videos, Movies, TV Shows, TV GUIDE, Family Pics, Home vids) at anytime in theaterview you could just hop to your shortcuts you made)
3. another bar that allows for complicated jump to's... example. The movie you are watching, on that top bar you could "hot" jump to All movies by that director, actor, or similiar movies from within that genre.MUSIC - jump to all music by that artist, similiar artists in genre, etc... guess maybe this would be considered a smartlist? or library item, or library group?
4. a info bar - similiar to other posts/links here. they click up/down bar pops up goto info, and then click to the right and info will pop up on screen/as an overlay. or like glynor mentioned in letterbox zone
Anywho... a player bar, great idea!