These plugins are obsolete, for the latest versions of calibre, see message # 7 below !
Here are minimally modified device interface plugins of the DR's for calibre. The changes are absolutely trivial and so I hesitated to post this, but maybe somebody else finds it useful or is inspired to do a better job.
For the DR1000, the main change I wanted, namely that calibre allows one to directly export djvu files and "knows" they are on the device, has already been implemented in calibre some releases ago. The only additional change is that the books now get exported to the Books directory, there is no additional directory "ebooks" created.
For the DR800, I have added the djvu format. From the files, you will see that it is extremely easy to add other supported formats, such as fb2 etc.
If there is interest I can try to find out what all the formats supported by all the additional ports are and which of those are also recognized by calibre in order to do a more complete job ...
Another change, that news should go to the dedicated News directory, seems not (yet) to be possible, see a related discussion for the nook,
https://www.mobileread.com/forums/sho...ight=News+nook
Instructions:
-download zipfiles and do not expand them
-go to preferences/plugins in calibre (latest version)
-browse to the zip files and and click add
-go to Device interface plugin, search for the Irex DR's, you will have 2 additional ones (John Schember + add)
-enable them (curiously you cannot disable the old ones, but it does not seem to matter)
-use "customize plugin" to select the additional formats that have appeared
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Updated version (v2) supports ['epub', 'pdb', 'mobi', 'prc', 'html', 'pdf', 'djvu', 'txt', 'fb2', 'plucker', 'oeb', 'ztxt', 'tcr', 'chm', 'rtf', 'cbz']