Sony READER TOUCH EDITION PRS-650 User Manual page 100

 The book may be protected by unsupported digital rights
management. Check the book source for compatibility.
 The book may contain an unsupported file format. Check
the file format compatibility (
[Continue Reading] does not work, or bookmarks are missing.
 If the file status has changed (such as in the following
cases), data on [Continue Reading] or notes may be
deleted.
 A Text/RTF/PDF file is edited.
 A book purchased with an authorized Reader is read on
another de-authorized Reader by memory card transfer.
You cannot find a transferred book.
 Protected content on the Reader can be deleted if it is
deleted from your computer after being connected. It is
recommended to manage content using Reader Library.
 Books being transferred to the Reader by synchronization
are deleted automatically if the same books are deleted
in Reader Library before synchronization. For details, refer
to Reader Library Help.
 Do not delete folders or files from any of the "database"
folder in the Reader. The content or notes may be
deleted.
Table of Contents
121).

Index
Troubleshooting
100