You can extract the contents of an ISO (like the "default.xex" file) using tools like 360MPGUI or XIB . Users on ConsoleMods Wiki suggest this method for copying games via USB or FTP.
ACHIEVEMENT UNLOCKED: EXISTENCE IS A PLACEHOLDER – 0G iso xbox 360
Here are a few options for an "ISO Xbox 360" post, depending on where you are posting and what your goal is. You can extract the contents of an ISO (like the "default
With the Xbox 360 marketplace changing and digital preservation becoming more important, I'm curious how everyone is managing their ISO libraries. iso xbox 360