I would like to see the contents of Squeak regarding multimedia 
improved. So
can you review

>> This changeset includes a lot of fixes/improvements to MPEGPlayer 
>> where
>> the most important are the support for subtitles files (format .sub) 
>> and
>> the full-screen option.
>>
>> List of changes:
>> - support for subtitles of .sub format (see comment in class
>> MPEGSubtitles)
>> - full-screen mode
>> - the quit button is always present
>> - eToys vocabulary for #videoFileName and #subtitlesFileName.  Using
>> this new tiles with scripts in projects (or un book pages) in 
>> 'opening'
>> mode we can create presentation with video in a multiplatform-way.
>> - yellowbutton menu (usefull in full screen)
>> - keyboard controls (usefull in full screen)
>> - new UpdatingTextMorph class used to display the subtitles
>>
>> IMPORTANT: The instances of MPEGPlayer created before this changeset
>> _will_ work including all the new stuff with the exception of the
>> button-row that _will not_ get updated.
>>
>> Thanks to Alejandro Magistrello for the first version of this work!!
>
>   Great!
>
>   It looks though that the subtitles are 'rendered' for every 50ms?
> It may not that cheap operation when we use the TrueTypes.  The
> version in the subtitles9.image caches the bitmaps of subtitles and
> works in sync with the MPEGPlayers screen update.
>
> -- Yoshiki
>