Definitely check out Death to Dot Star!.

Since I haven't really worked with binmode, I don't know what gotchas it introduces. You might want to try using the multiline (m) option on your regex.

Also, a better way to read in your file at one go is:

#Slurp up ORIG
{  local $/;
   $string= <ORIG>
}
[download]

This works by undefing the input record separator, which causes any read from the filehandle to get the whole file. BTW, setting $/="" blank lines are the delimiter.

TGI says moo