add media type to hal

[Christophe Fergeau]

> CDS_XA_* aren't really iso9660. They're a bit like mixed CDs, the only
> difference between the 2 is what the main purpose is for the CD: CD
> Extra has a data track at the end (main purpose is audio playback), the
> Mixed CD has it at the front (main purpose is the data, with bonus
> tracks at the end, like some old games or magazine CDs used to have).

I think you can have CDS_XA_* CDs with a single iso9660 track, iirc
VideoCDs are an example of such cds.
I don't think "iso9660" is an appropriate string even for CDS_DATA_1 and
CDS_DATA_2, I'm pretty sure I have Mac-only CDs at work which contain a
Mac partition table, several HFS filesystems but no iso9660 filesystem.

Christophe

> 
> BTW, CD Plus is the old name for CD Extra, a Mixed CD isn't a CD Plus :)
> 
> ---
> Bastien Nocera <hadess at hadess.net> 
> If at first you don't succeed, remove all evidence you ever tried.
> 
> 
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