Pages with 0 Bytes

I noticed when converting pages that I would sometimes get the following cryptic message (and this halted the import):

The PHP functions fopen() and file_get_contents() have both failed. We can’t import any files without these functions. Please ask your server administrator if they are enabled.

FYI: This message appears when the program hits a file of 0 bytes… perhaps you could check for a file greater then 0 bytes before importing, and if the file is 0 bytes provide a message at the bottom informing the user of the file.

Dennis