Mine crashes as well. Here's my log.txt, after trying to open the disc twice:
Debug log started at Tue Oct 09 18:27:32 2012 , written by MakeMKV v1.7.7 win(x64-release)
Using 524544KB for read cache.
001005:0000 MakeMKV v1.7.7 win(x64-release) started
001004:0000 Debug logging enabled, log will be saved as C:\Users\Jesse/MakeMKV_log.txt
003007:0000 Using direct disc access mode
DAFD=PAAAADAAAAEABDQUEAQEBAQ==
DCE=hMvQ04g6Yy/sqsAYpw/+AU2As+OSqIDK9ExaZnhVZ1vw7AS9dpWulZSMYIpaVUgFpY8gk2zn4LrTBATmn2Icfpi2dQFyIZl2YAsSYFgQjsta4CoC+V3VvhuMFcahgE3B+QnMVXeOnGcljJ4gA/LQPEPlS5wK7gZaGA==
003338:0000 Downloading latest SVQ(s) to C:\Users\Jesse/.MakeMKV ...
003317:0000 Loaded 111 SVQ file(s)
003326:0000 Processing BD+ code, please be patient - this may take up to few minutes
003324:0000 Processing BD+ code using generic SVQ from builtin/00000.svq
001003:0020 DEBUG: Code 89 at |19~.e~B0kB?qG#eL`:29397265
001003:0020 DEBUG: Code 89 at |19~.e~B0kB?qG#eL`:121262923
001003:0020 DEBUG: Code 0 at |19~.e~B0kB?qG#eL`:29394643
001003:0020 DEBUG: Code 0 at VQ8`[Z>&o,%^97:N6}sW:121262486
001003:0020 DEBUG: Code 0 at gV%VSomF4%^v^a[S:29400531
001003:0020 DEBUG: Code 0 at gV%VSomF4%^v^a[S:29398254
001003:0020 DEBUG: Code 0 at gV%VSomF4%^v^a[S:213139690
003325:0000 Failed to process BD+ code using generic SVQ from builtin/00000.svq
001003:0020 DEBUG: Code 0 at ;]D-G092s*LE\HmlM%:121265752
003332:0000 Saved BD+ dump file as C:\Users\Jesse/.MakeMKV/dump_Prometheus_986AF3EED696C860.tgz
003321:0000 Failed to process BD+ code, please check
http://www.makemkv.com/svq/ for updated program and SVQ files
001003:0020 DEBUG: Code 0 at ^ES:6?mKZ|!<r&e>:29396897
005010:0000 Failed to open disc
003007:0000 Using direct disc access mode
DAFD=PAAAADAAAAEABDQUEAQEBAQ==
DCE=YzAT2l8Tzm2frN9YHogShV9ipODOWZIRdCL4XyzzrdbfpiZxGIXDXjk8vDrkQqZtStzWv5oOqpnuTX6MHm7Y3JmESrzN2mpHeOWyvYOWijTIcoiGhV51Z/OzLuaKzYRkbxSTxv3oxSvHRqGurj1g3u3pWCo/dCoQWA==
003317:0000 Loaded 111 SVQ file(s)
003326:0000 Processing BD+ code, please be patient - this may take up to few minutes
003324:0000 Processing BD+ code using generic SVQ from builtin/00000.svq
001003:0020 DEBUG: Code 89 at |19~.e~B0kB?qG#eL`:29397265
001003:0020 DEBUG: Code 89 at |19~.e~B0kB?qG#eL`:121262923
001003:0020 DEBUG: Code 0 at |19~.e~B0kB?qG#eL`:29394643
001003:0020 DEBUG: Code 0 at VQ8`[Z>&o,%^97:N6}sW:121262486
001003:0020 DEBUG: Code 0 at gV%VSomF4%^v^a[S:29400531
001003:0020 DEBUG: Code 0 at gV%VSomF4%^v^a[S:29398254
001003:0020 DEBUG: Code 0 at gV%VSomF4%^v^a[S:213139690
003325:0000 Failed to process BD+ code using generic SVQ from builtin/00000.svq
001003:0020 DEBUG: Code 0 at ;]D-G092s*LE\HmlM%:121265752
003332:0000 Saved BD+ dump file as C:\Users\Jesse/.MakeMKV/dump_Prometheus_986AF3EED696C860.tgz
003321:0000 Failed to process BD+ code, please check
http://www.makemkv.com/svq/ for updated program and SVQ files
001003:0020 DEBUG: Code 0 at ^ES:6?mKZ|!<r&e>:29396897
005010:0000 Failed to open disc
Application exited at Tue Oct 09 18:31:09 2012