Your file extensions will help guide you with this and most FTP client programs
will auto-detect the transfer type. If your files are readable in a text editor such
asNotepad, you can safely upload them inASCII mode, if the programs are
compiled or executable programs such as pre-compiledCGI scripts (written in C
for example),audio or video files (.mov, .ra, .avi, etc) should be uploaded inbinary mode.