I recently tried to download some old Star Trek eBook’s that I bought years ago of booksonboard.com, when I tried to down load them I get this error. “MobiPocket [PX] downloads are no longer available. We apologise for the inconvenience.” I contacted their email support and got this reply: Hello, Thank you for shopping with BooksOnBoard. We are not denying you access to these files. This error indicates that the distributor for these files no longer sources these files to us. I'm sorry for the inconvenience, but I am unable to establish these links. Please let us know if we may be of further assistance. Regards, Jack BooksOnBoard Support" I was wondering why this has happened, It was my understanding that eBook’s could be downloaded perpetually , not removed on the whim of the distributor, I have paid for these eBook’s and now have no access to them.