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<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>I want to handle a
DRM file format, which adds an encryption wrapper outside of the protected content.
Please see the diagram.<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>------------------------------<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>|&nbsp;&nbsp; DRM
wrapper MIME&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
|<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>|
-------------------------- |<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>|
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
| |<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>| | Embedded content
MIME&nbsp;&nbsp; | |<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>|
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
| |<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>|
-------------------------- |<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>|----------------------------|<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>I also write some
media applications for it. But every DRM-ware applications can support only a
few embedded content MIME types.<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>For example, a
DRM-aware music player can only support DRM-protected or clear songs while a
DRM-aware picture viewer can only support protected or clear pictures.<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>So how can I write
the .desktop entry of such DRM-aware applications?<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>If I set MIME type to
the DRM wrapper MIME type, my music player may be launched to open a
DRM-protected picture and fails. <o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>And because the
embedded content can be various while the wrapper MIME type is unique, I can
expect many such failures.<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Is there any better
practice to handle this issue?<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Is it feasible to
invent new MIME types that mix the wrapper MIME type and the embedded content
type? <o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>E.g. audio/mpeg-xx- secured
or image/jpeg-xx-secured and using them in the .desktop entry of my DRM-aware
applications?<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Great thanks!<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Amanda<o:p></o:p></span></p>

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