Complex sentence: The EP was released on July 18,2008 in Australia and July 22,2008 in the US, and was also released on iTunes in iTunes Plus format and on Amazon.com's MP3 Download service.
Split into simpler sentences: The EP was released on July 18,2008 in Australia and July 22,2008 in the US. It was also released on iTunes in iTunes Plus format and on Amazon.com's MP3 Download service.