in reply to CGI Upload and MP3 Endianness on Unix versus Win32

If it is a CRLF⇒LF issue, I'd check the registry values for 

HKEY_CLASSES_ROOT\.mp3\Content Type
HKEY_CLASSES_ROOT\.mp3\PerceivedType

[download]

on the Vista machine. They should be "audio/mpeg" and "audio". I don't know if IE and FF use them, but they could.

In Section Seekers of Perl Wisdom