DVDSP Just began Crashing

Question

Yesterday the same DVD Project crashed out 4 times in the same spot.  I start a project and as I get each section done, I burn so we can use for our rehearsals - thus the same project is added to and burned several times over a period of 8 weeks.  I've burned this particular project about 8 times already. All was well until yesterday - it went thru a muxing process and always crashed at the 58% mark.  So this evening I tried burning another older, small project - and it was successful.  So I deleted all the assets for my current project - I kept the menu, saved the file (without any assets), quit DVDSP, then launched and re-imported the assets.  I then burned, and got no muxing but encoding started, and seemed to be working well, so I went to do another task in another room.  When I returned it had crashed out, but alas I don't know where.  So I tried again, and muxing returned and this time the program unexpectedly quit at 98%.
I came to this forum and read to BUILD to a folder on my desktop, then Burn in Toast.  Good idea, but it crashed during the Build Process. Sigh.
Here's the problem details & Sys Config first few lines...  DVD Studio Pro quit unexpectedly while using the DVD Studio Pro plug-in.
Help... Thanks for any suggestions at all.
Process:         DVD Studio Pro [407]
Path:            /Applications/Final Cut Studio/DVD Studio Pro.app/Contents/MacOS/DVD Studio Pro
Identifier:      com.apple.dvdstudiopro
Version:         4.2.1 (431.25)
Build Info:      DSP-4312500~157
Code Type:       X86 (Native)
Parent Process:  launchd [160]
Responsible:     DVD Studio Pro [407]
User ID:         501
PlugIn Path:       /Applications/Final Cut Studio/DVD Studio Pro.app/Contents/MacOS/DVD Studio Pro
PlugIn Identifier: com.apple.dvdstudiopro
PlugIn Version:    4.2.1 (431.25)
Date/Time:       2014-04-24 21:25:06.662 -0700
OS Version:      Mac OS X 10.9.2 (13C64)
Report Version:  11
Anonymous UUID:  A6B85390-4942-4802-36EB-C58F007C646F
Crashed Thread:  12
Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000180

Answer 1

Tried it again - via BUILD - crashed at 95%. 
So tried BURN; crashed just after finishing muxing - log said, 'Done.' Crash.  Error report shows Crashed thread 12:
Thread 11:
0   libsystem_kernel.dylib                  0x9821ef7a mach_msg_trap + 10
1   libsystem_kernel.dylib                  0x9821e16c mach_msg + 68
2   com.apple.CoreFoundation                0x95a2ad29 __CFRunLoopServiceMachPort + 169
3   com.apple.CoreFoundation                0x95a2a301 __CFRunLoopRun + 1393
4   com.apple.CoreFoundation                0x95a29b1a CFRunLoopRunSpecific + 394
5   com.apple.CoreFoundation                0x95aec221 CFRunLoopRun + 129
6   com.apple.DiscRecording                 0x9afc8f68 DRWorkLoop::WorkLoop() + 266
7   com.apple.DiscRecording                 0x9afc8e47 DRWorkLoop::WorkLoopEntry(DRWorkLoop*) + 17
8   com.apple.DiscRecording                 0x9afc8be4 DRThreadObject::StartRoutine(DRThreadObject*) + 142
9   com.apple.DiscRecording                 0x9afc8b55 DRThreadObject::SymbolRoutine(DRThreadObject*) + 17
10  libsystem_pthread.dylib                 0x982435fb _pthread_body + 144
11  libsystem_pthread.dylib                 0x98243485 _pthread_start + 130
12  libsystem_pthread.dylib                 0x98248cf2 thread_start + 34
Thread 12 Crashed:
0   com.apple.dvdauthoring                  0x00fa162f CVtsi::GetPlaylistDuration(DVDMessageClient*, CDVDMapper*, CCellManager&, unsigned long, unsigned long, CTimeCode*) + 419
1   com.apple.dvdauthoring                  0x00fa2068 CVtsi::SetupPlaylistTMap(DVDMessageClient*, CCellManager&, unsigned long, CDVDMapper*, ETimeCodeFormat, CVobuTable*) + 234
2   com.apple.dvdauthoring                  0x00fa3477 CVtsi::Compile(DVDMessageClient*, unsigned long, CVobuTable*, CDVDMapper*) + 411
3   com.apple.dvdauthoring                  0x00f926b2 CCompileController::CompileMovieStreams() + 596
4   com.apple.dvdauthoring                  0x00f94606 CCompileController::DoCompileAndMux() + 1694
5   com.apple.dvdauthoring                  0x00f948fe CCompileController::BuildThread() + 600
6   libsystem_pthread.dylib                 0x982435fb _pthread_body + 144
7   libsystem_pthread.dylib                 0x98243485 _pthread_start + 130
8   libsystem_pthread.dylib                 0x98248cf2 thread_start + 34
Thread 13:: com.apple.appkit-heartbeat
0   libsystem_kernel.dylib                  0x98223b76 __semwait_signal + 10
1   libsystem_c.dylib                       0x93457fb7 nanosleep$UNIX2003 + 219
2   libsystem_c.dylib                       0x93457e62 usleep$UNIX2003 + 60
3   com.apple.AppKit                        0x968a3a4c -[NSUIHeartBeat _heartBeatThread:] + 2318
4   com.apple.Foundation                    0x9a072f0e -[NSThread main] + 45
5   com.apple.Foundation                    0x9a072e66 __NSThread__main__ + 1426
6   libsystem_pthread.dylib                 0x982435fb _pthread_body + 144
7   libsystem_pthread.dylib                 0x98243485 _pthread_start + 130
8   libsystem_pthread.dylib                 0x98248cf2 thread_start + 34