Yet Another Reminder That You Don't Own Your Ebooks: B&N Nook Deletes Files, Blames User
This is not another story like the one where Amazon deleted
1984 from the kindle. This is about treating ereaders as paper books where the info in them will not disappear.
The guy is blaming B&N. And while there's a little validity to his rant, it's like crying "I didn't know that I had to back up my computer".
Removing DRM would be the first step. Copying the files off your computer would be the next step. After all, you have to protect against loosing your data
and your reader.