The filesize effect of UPPERCASE versus lowercase tags

Some guy said uppercase characters require less bytes, so I had to test this:

• Lowercase in iso-8859-1 (424 bytes)
• Uppercase in iso-8859-1 (424 bytes)
• Lowercase in utf-8 (419 bytes)
• Uppercase in utf-8 (419 bytes)

Also check out this lame version ;-]