How can I reduce the size of "Others" in iTunes' information bar for iPhone usage at the bottom of the "General"-screen?

Hi Hans,

“Other” space has several sources. Some ways of removing unneeded files from it can be found in this article -

iOS: "Not enough free space" alert when trying to sync

http://support.apple.com/kb/TS1503

Specifically -

Orphaned files may remain on your iOS device if it is physically disconnected while syncing music, podcasts, videos, or photos. This can prevent iTunes from syncing the iOS device on subsequent sync sessions. When this happens, the Capacity indicator in iTunes may report a large amount of "Other" disk usage for the iOS device. To resolve this issue:

1. Turn off the music or photo sync option in iTunes for the device.
2. Click Apply to sync the changes to the device.
3. Turn the music and photo sync options for the device on again.
4. Click Apply again to try to sync the device to iTunes.
   If the 'Not enough free space' alert appears, continue to step 5.
5. Turn off the automatic syncing functions for the iOS device. To do this:
   1. Select the iOS device from the iTunes window and click the Summary tab.
   2. Deselect "Automatically sync when this device is connected" and select the "Sync only checked songs and videos" checkbox.
   3. Click Apply to sync the changes to the device.
   4. Reduce the amount of data that is being synced to the device and resync the device. For example, if syncing your Music library exceeds the memory capacity of the device, choose "Selected playlists" to transfer rather than "All songs and playlists" under the Music tab in iTunes.
      If the 'Not enough free space' alert appears, continue to step 6.
6. Restore using iTunes.

Thanks for using Apple Support Communities.

Best,

Brett L

Kappy's User Tip to deal with "Other": https://discussions.apple.com/docs/DOC-5142

I have the same problem as Hans with too much memory taken up by the "other" section - currently 3gb out of 8 in total in my iphone 4S. I have applied the different pieces of advice given here - I reset the iphone several times. I emptied all the caches, got rid of all photos and music and most of the apps, but still the 3gb won't disappear. Any thoughts?