ITunes quits when adding to library

Question

I have a MacBook and am running iTunes 7.6.2. I have a smaller library already on my MacBook, consisting of about 6 gigs of music. I am trying to import my larger library from my PC, consisting of about 31 gigs of music, onto the MacBook. I can't simply replace the library, because the MacBook has some songs that aren't on the PC. I use iTunes to automatically sort my playlists.
After transferring the music files to the MacBook, I selected "Add to Library" and selected the music. iTunes started to re-copy the files into the Library already there, after which I would just delete the originals that I transferred over. Unfortunately, every time I attempt to do this, iTunes just quits unexpectedly during the process. I've tried all the usual tricks, including deleting the library file, the com.apple.Itunes.plist file, the XML file, and starting over. If I attempt to use iTunes after attempting to import the music, it acts unstable and randomly quits. The only way I can restore it is to use Time Machine to restore back to the old, smaller 6 gig library.
I have the crash report from one of the attempts, although it's different each time. Here's the crashed thread:
Thread 8 Crashed:
0 libSystem.B.dylib 0xffff1250 __longcopy + 80
1 libSystem.B.dylib 0xffff086e __memcpy + 206
2 com.apple.iTunes 0x001ddd7d 0x1000 + 1953149
3 com.apple.iTunes 0x001fc4c8 0x1000 + 2077896
4 com.apple.iTunes 0x000f464c 0x1000 + 996940
5 com.apple.iTunes 0x001759e3 0x1000 + 1526243
6 com.apple.iTunes 0x00176af3 0x1000 + 1530611
7 com.apple.iTunes 0x000edd8f 0x1000 + 970127
8 com.apple.iTunes 0x000ee1d3 0x1000 + 971219
9 com.apple.iTunes 0x001114b5 0x1000 + 1115317
10 com.apple.iTunes 0x0027c910 0x1000 + 2603280
11 ...ple.CoreServices.CarbonCore 0x9346fe1d CooperativeThread + 309
12 libSystem.B.dylib 0x9478b6f5 pthreadstart + 321
13 libSystem.B.dylib 0x9478b5b2 thread_start + 34
Thread 8 crashed with X86 Thread State (32-bit):
eax: 0x00000000 ebx: 0x00000000 ecx: 0x01c1c5d9 edx: 0x00040000
edi: 0x18885000 esi: 0x1ad1e5a9 ebp: 0xb01bcaac esp: 0xb01bcaa0
ss: 0x0000001f efl: 0x00010246 eip: 0xffff1250 cs: 0x00000017
ds: 0x0000001f es: 0x0000001f fs: 0x0000001f gs: 0x00000037
cr2: 0x1ad1e5a9
And I looked at the com.apple.iTunes.plist file after the crash, and it appears to be mostly nothing but thousands of capital "A's" with a few scattered characters throughout.
Any insight into how I can successfully consolidate my two libraries would be greatly appreciated. Thanks!

Answer 1

Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
The title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen. Click the Clear Display icon in the toolbar. Then take one of the actions that you're having trouble with. Select any messages that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of which is irrelevant to solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting.