[pholy]

The Kobo software was designed to accommodate loading one book at a time - notice you can only buy one book at a time? So when you throw 200 books at it all at once, it will seem to choke. In your case, I'm assuming all your books were once processed successfully, so it should simply be a matter of time - if your battery is charged fully. Note: Bad epubs will cause it to hang; new books should be added only a very few at a time.

You could try loading only ten books at a time onto the SD card, then processing them. It will take more work from you, but the total time should be about the same. Then you would have some idea how long you should have waited - assuming the battery held out.