Currently Being ModeratedJan 31, 2013 1:26 PM (in response to yvesleon3105)
I believe that deleting it will only be temporary as it will regenerate the cache the next time you try syncing your ipad. It may just be that over time, the cahe has been getting larger and larger, even as you've deleted photos from your collection. You may want to try duplicating or moving it first and seeing what it does the next time you sync first.
Currently Being ModeratedJan 31, 2013 1:27 PM (in response to yvesleon3105)
You can delete it. But Aperture/iTunes will recreate it during the next synch with your iPad as needed. The bad news is this will add additional time to the synch process. The good news is the new cache might be smaller after the regen.