ITunes 7.1.1 crashes with dial-up

Question

I am getting frequent crashed when using iTunes (with a music CD) and my dial-up. I can’t pinpoint whether the problem is with the ISP, iMac, iTunes, or Mac OS X, so I’m starting with the iTunes forum first.
There are 2 problems with I use iTunes while connected via dial-up. Either 1) the whole screen dims and a dialog box comes up asking me to restart the company or 2) the internet connection is dropped.
When I already have iTunes opened and a music CD in my computer, I connect to my ISP, then when I go to get the song titles using the menu choice in iTunes, the connection drops. More frequently though is that after the song titles are retrieved, I eject the CD, then the connection dropped, this happens every time.
When I’m already connected, I insert a CD, iTunes should automatically opened (as I set that in prefereces), but it takes a while and the color ball spins, then less than a minute later, the screen dims and the restart dialog box appears. I notice that the disc is mounted on the desktop but not showing up in iTunes.
I’ve spoken to my ISP and not surprisingly, they have no clue to this situation. Hope someone can help.
iMac G5 iSight   Mac OS X (10.4.8)   Apple external modem, dial-up (Toast.net), no iTunes plugins

Answer 1

TD, I got the wrong log but will post the right one later. Perhaps this might help as well.
/Library/Logs > panic.log
Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x00000000A2CA5144 PC=0x0000000000692A34
Latest crash info for cpu 0:
Exception state (sv=0x3CE40000)
PC=0x00692A34; MSR=0x0000B030; DAR=0xA2CA5144; DSISR=0x00200000; LR=0x00693244; R1=0x2214B7C0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x0069328C 0x006933BC 0x00693938 0x00694730 0x0068F22C 0x005DAF30
0x005D12E4 0x0060E7C0 0x006A2A5C 0x006A2998 0x005B892C 0x002D33D8 0x0003C884 0x000A9314
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.MotorolaSM56KUSB(1.5.2)@0x574000
dependency: com.apple.iokit.IOSerialFamily(9.0.0d30)@0x4bc000
dependency: com.apple.driver.AppleSM56KUSBModemFamily(1.0.0b20)@0x565000
Proceeding back via exception chain:
Exception state (sv=0x3CE40000)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x49C69C80)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
iMac G5 iSight Mac OS X (10.4.8)