The Difference Between ASCII and BINARY?
In short, html or text based files are supposed to be transferred in
ASCII mode.
Uploading them in Binary mode will append ^M's to the end of every line.
In most cases, this is OK, with html files because your browser will ignore
them.
With other text files such as CGI scripts, uploading them in binary will
damage them, thus causing a (server 500 error).
This is because binary mode has added ^M's to the end of every line,
which are not supposed to be in the program.
Once again, BINARY mode is used for transferring executable programs,
compressed files and all image/picture files.
If you try to upload an image in ASCII mode, you observer a strange mess
appearing on the page where the image is suppose to appear.
ASCII mode in this case, has corrupted the binary coding in the jpeg or
gif image.
If this happens, just re-upload it in the Binary format.
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