My long audiobook files are reduced to very short track lengths when synced with my iPhone

Question

Hi,
(I had a look for this post from somebody else but didn't see anything, apologies if I'm doubling up...)
I have a couple of audiobooks with loooong track lengths, like 10-11 hours per track. But when I sync them to my iPhone to listen, the tracks are cut drastically, only being about an hour each, meaning that I lose the other 10 hours or so of the chapter...
Is there a reason why this happens and does anyone know how to correct this problem?
Cheers

Answer 1

Just to add to what ChrisJ4203 said.  You can sync them to your new computer using iTunes by selecting to Include Voice Memos on the Music tab of your iTunes sync settings and syncing.  However, you still need to re-establish syncing with the new computer without iTunes erasing all the iTunes media from your phone (as the warning mentioned).
If you copy your entire iTunes folder (not just your music) from your old computer to your new one, along with other non-iTunes media you may be syncing with iTunes (such as contacts, calendars and any photos synced to your phone from your old computer) by using migration assistant of following one of these methods: http://support.apple.com/kb/HT4527, then when you sync again with your new computer it will recognize your phone and sync as it did before.  You will still have to authorize the new computer for any Apple IDs used to purchase from the iTunes and App stores (in iTunes>Store>Authorize this computer). 
After that you can sync your voice memos to your computer as mentioned earlier.
If you want to archive your voice memos before you do anything with iTunes, you can use a 3rd party program such as PhoneView or Touch Copy.