Core:
* error reporting facilities
* find installed plugins (instead of having a build-in list)

Untested code:
* QuickTime is untested: it may or may not work
  => also: check with code from bitzi collider

'Unclean' code:
* QT
* ASF
* RPM

Incomplete code (missing features):
* RIFF (idx1 attribute)
* IDv2 (some attributes)
* StarOffice sdw (some attributes, see doc/)

Desireable missing formats:
* dvi (creation date, page count)
* man pages (title, modification date, authors, brief description)
* info pages
* rtf 
* sources (Java, C, C++, see doxygen!)
* deb 
* tar
* a.out
* EXE

Steal from libferris:
- ac3/a52
- djvu
- exif
- imlib2
- jasper
- imageMagick
- mpeg3/mpeg2 video (improvements?)
- RDF (redland)
- XMP embedded RDF
- native kernel EA
- PDF-as-text 
- HTML-as-text

