Was it doubletwist that caused my problem?

[mattg3]

Trying to sync 8g of itunes non-drm music to new samsung mini-tablet.I put double twist on my imac and on tablet that has 32gb card installed.When i plugged my tablet into the imac doubletwist recognized it as the sd card and the tablet and downloaded all music to both stopping at 5g where the tablet space ran out.I tried formatting the tablet which got rid of the music,keeping it on sd card and I replugged and got rest of 8g of music on card but also on the tablet that i formatted again to get rid of it.Was I suppose to download double twist to both the tablet and the imac.I felt that by doing this my music ended up in two downloads? thanks Matt