DirectoryIndex index.php

<IfModule mod_xsendfile.c>
<Files fetch.php>
    XSendFile on
</Files>
</IfModule>

###########################################
# If the notation above don't work, you can try that one
# Disclaimer : I'm no apache expert it can be bad security wise :(
###########################################
#XSendFile On
#XSendFileAllowAbove on

###########################################
# On WAMP one user had to add this line in his httpd.conf
# None of the abose was working
###########################################
#XSendFilePath <YourCalibrePath>

<IfModule mod_rewrite.c>
RewriteEngine on
RewriteRule ^download/(\d*)/(\d*)/.*\.kepub\.epub$ fetch.php?data=$1&db=$2&type=epub [L]
RewriteRule ^download/(\d*)/(\d*)/.*\.(.*)$ fetch.php?data=$1&db=$2&type=$3 [L]
RewriteRule ^download/(\d*)/.*\.kepub\.epub$ fetch.php?data=$1&type=epub [L]
RewriteRule ^download/(\d*)/.*\.(.*)$ fetch.php?data=$1&type=$2 [L]
</IfModule>

<IfModule mod_expires.c>
ExpiresActive on

# Data
ExpiresByType text/xml "access plus 0 seconds"
ExpiresByType application/xml "access plus 0 seconds"
ExpiresByType application/json "access plus 0 seconds"
ExpiresByType application/xhtml+xml "access plus 0 seconds"

# Favicon (cannot be renamed)
ExpiresByType image/x-icon "access plus 1 week"

# Media: images
ExpiresByType image/png "access plus 1 month"
ExpiresByType image/jpg "access plus 1 month"
ExpiresByType image/jpeg "access plus 1 month"

# Webfonts
ExpiresByType font/truetype "access plus 1 month"
ExpiresByType font/opentype "access plus 1 month"
ExpiresByType application/x-font-woff   "access plus 1 month"
ExpiresByType image/svg+xml "access plus 1 month"
ExpiresByType application/vnd.ms-fontobject "access plus 1 month"

# CSS and JavaScript
ExpiresByType text/css "access plus 1 year"
ExpiresByType application/javascript "access plus 1 year"
ExpiresByType text/javascript "access plus 1 year"
</IfModule>

###########################################
# Uncomment if you wish to protect access with a password
###########################################
# If your covers and books are not available as soon as you protect it
# You can try replacing the FilesMatch directive by this one
# <FilesMatch "(index|feed)\.php">
# If helps for Sony PRS-TX and Aldiko, beware fetch.php can be accessed
# with authentication (see $config ['cops_fetch_protect'] for a workaround).
###########################################
#<FilesMatch "\.php$">
#AuthUserFile /path/to/file
#AuthGroupFile /dev/null
#AuthName "Acces securise"
#AuthType Basic
#Require valid-user
#</FilesMatch>