[Halo]

Originally Posted by kovidgoyal

The path length is limited to 75 characters. If it were made longer then the path to individual book files would become too long for windows.

Windows supports paths of up to 32,767 characters if you prefix the path with "\\?\". For example, "\\?\D:\very long path". See the following web pages for reference:

1. http://www.codinghorror.com/blog/200...-too-long.html
2. http://msdn.microsoft.com/en-us/library/Aa365247

I successfully used this method last year when I was writing scripts to clean up files on a file server at work.

It works fine in Python. I think calibre can fix this limitation:

import os
p = "\\\\?\\" + os.getcwdu()
for i in range(10):
    p = os.path.join(p, 'x' * 100)
    os.mkdir(p)
    os.stat(p)
print len(p)