Play option

Can anyone advise me how to change the player used to play back tracks?
I am currently unable to use Mediaplayer which it defaults to.

You can change it at Options > Tools > Default action by selecting a previously added user-defined tool.

Another option is to re-associate the player with the file type, since Mp3tag tries to read that information from Windows.

Worked a treat - many thanks.
eg.
General-Tag Panel-Tools-
Name=Player
Path=E:\Program Files\realplay.exe as typed in or use browse option for location of program .exe
Parameter=left blank
ticked/selected - for all selected files
OK

now able to to play back each track using Realplayer when PLAY option selected from right mouse click

Attempted to set up option as doubleclick with:
" "path" plus [CTRL-P]"
but without success where the program opens OK but does not automatically select/play the track.
Can you help with the syntax for this one? Regards, Chris

I don't use RealPlayer (and don't intent to install it) but I'd try to use

/play "%_path%"

as parameter.