PlaySound CMM lets you play soundfiles directly from the Finder, without having to open any application, then goes away by itself.
 
||||||||| About Contextual Menus
Under OS8, in the Finder, if you control-click on a file's icon, a 'contextual menu' of things you can do to or with the file will pop up. The Finder ships with built-in items like 'Move To Trash' and 'Copy'; PlaySound CMM adds items for playing sound files.
 
||||||||| Playing Sounds
With PlaySound CMM installed, if you control-click
on a sound file, one of the items in the contextual
menu will be 'Play Sound'. Just select 'Play Sound,'
and the sound will play. Click the mouse or press a
key to stop the sound.
The Play Sound item won't appear if you control-
click on a sound file in any format that it can't read,
or if you control-click on a file that isn't a sound.
(As always, you can play System sound files by
double-clicking it).
||||||||| Multiple Selections
If you select more than one sound file before
control-clicking, then PlaySound CMM will play all
of them, one after another, in the Finder's current sort order. (Note that the sounds are not necessarily
played in the same order in which you selected them.) With a multiple selection, a mouse click or keypress
will stop playback of the current sound file and take you to the next one.
||||||||| Sound File Formats Supported
Sound Designer II: 8-bit & 16-bit Linear
WAVE: 8-bit & 16-bit Linear
AIFF/AIFC: 8-bit, 16-bit, and 32-bit Linear; 8-bit MACE 3:1 and 6:1;