[Mare of Earth]

A couple of questions - some of them may seem silly to ya'll, however, I haven't gotten to ask them before, and I was hoping one of ya'll would know.

1. With the folder structure, how many books can be stored on the SD card without the Reader getting brain freeze?

2. Exactly how difficult is it to add support for another format?

I have the Kindle PC and iTouch software and use that to read free Kindle books (big selection) and I constantly wonder why exactly someone can't add support for these formats to the Sony. Is it a space limitation, or complete incompatability (according to various sources, they both use Linux)? If it is a space limitation, could Adobe support be swapped out for Kindle format support? I have never managed to read an Adobe file on my reader - it always looks wrong. (Keep in mind, I know nothing about programming!)

Thank you for any replies - I have seen many posts that say you can't, however, no one ever seems to post "Why" you can't.