Originally Posted by onerubberducky
Is it possible to buy Kindle books (I do not own one), download it to the computer and then put them in a Sony 505?
It is "possible" to deDRM a Kindle book and convert it to a format the Sony can read. Assuming it is not a Topaz (azw1) book.
However, if you do NOT have a Kindle registered to your Amazon account you can NOT buy Kindle books. So it is kind of a moot point.