Cybook t4b Format Specification

The new epub thumbnail files (.epub.thn) are what Bookeen calls t4b files. They are very similar to the older t2b thumbnail files they were using in earlier versions of the Cybook firmware. As the name suggests instead of using 2 bits to represent color values 4 bits are now used. This increases the number of […]

Cybook 2.0 Thumbnail Observations

The 2.0 fimware for the Cybook and Opus have new thumbnails for epub files. They use the .thn extension and it is append after the .epub extension. This is unlike the _6090.t2b thumbnails which use the book name without the extension and _6090.t2b appended to it. I have yet to start figuring out this new […]

Calibre Week In Review

Kovid just tagged the 0.6.33 release so it should be out the door later today. Only one major feature from me this week. The PRS driver can new customize what gets turned into a collection. The default was and is series and tags. Now under the device interface configuration you can specify any metadata field. […]

Cybook 2.0 Firmware Calibre Fix

I’ve committed a fix for the Cybook 2.0 firmware id issue I posted yesterday. In calibre I’ve combined the Gen 3 and Opus device interfaces into one generic Cybook interface. Both were very similar and the Opus was just a subclass of the Gen 3. Also, with the 2.0 firmware being for both the Gen […]

Cybook 2.0 Firmware Identity Issues

On Christmas eve Bookeen finally released the long awaited 2.0 firmware for the Cybook Gen 3 and Cybook Opus. As soon as I returned from my Christmas vacation I upgraded my Gen 3 to the 2.0 version. Today while debugging a device issue for calibre I noticed that my Gen 3 kept being detected as […]

Calibre Week In Review

There was a major change this week to the device infrastructure. Kovid merged (with some modification) my changes to allow “Send to device” to use custom device paths just like “Save to disk”. Kovid’s major change to my implementation are having a separate save template for “Send to device” and allowing for per device overrides […]