With the debug package for brasero:

$ nautilus
Initializing nautilus-share extension
*** glibc detected *** nautilus: double free or corruption (fasttop): 0x08a32d28 ***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6[0xb73c1604]
/lib/tls/i686/cmov/libc.so.6(cfree+0x96)[0xb73c35b6]
/usr/lib/libglib-2.0.so.0(g_free+0x36)[0xb78520c6]
/usr/lib/libbrasero-media.so.0[0xb5508e88]
/usr/lib/libbrasero-media.so.0[0xb55092be]
/usr/lib/libglib-2.0.so.0[0xb787497f]
/lib/tls/i686/cmov/libpthread.so.0[0xb74bc4ff]
/lib/tls/i686/cmov/libc.so.6(clone+0x5e)[0xb743649e]
======= Memory map: ========
08048000-081d7000 r-xp 00000000 08:01 229170     /usr/bin/nautilus
081d8000-081da000 r--p 0018f000 08:01 229170     /usr/bin/nautilus
081da000-081dd000 rw-p 00191000 08:01 229170     /usr/bin/nautilus
081dd000-081de000 rw-p 081dd000 00:00 0 
08850000-08aa4000 rw-p 08850000 00:00 0          [heap]
b4800000-b4821000 rw-p b4800000 00:00 0 
b4821000-b4900000 ---p b4821000 00:00 0 
b4977000-b4978000 ---p b4977000 00:00 0 
b4978000-b5178000 rw-p b4978000 00:00 0 
b5178000-b54f7000 r--p 00000000 08:01 425170     /usr/share/icons/hicolor/icon-theme.cache
b54f7000-b5515000 r-xp 00000000 08:01 228962     /usr/lib/libbrasero-media.so.0.1.1
b5515000-b5516000 r--p 0001e000 08:01 228962     /usr/lib/libbrasero-media.so.0.1.1
b5516000-b5517000 rw-p 0001f000 08:01 228962     /usr/lib/libbrasero-media.so.0.1.1
b5526000-b553b000 r-xp 00000000 08:01 230733     /usr/lib/libevdocument.so.1.0.0
b553b000-b553c000 r--p 00015000 08:01 230733     /usr/lib/libevdocument.so.1.0.0
b553c000-b553d000 rw-p 00016000 08:01 230733     /usr/lib/libevdocument.so.1.0.0
b5545000-b554a000 r-xp 00000000 08:01 279762     /usr/lib/nautilus/extensions-2.0/libnautilus-brasero-extension.so
b554a000-b554b000 r--p 00004000 08:01 279762     /usr/lib/nautilus/extensions-2.0/libnautilus-brasero-extension.so
b554b000-b554c000 rw-p 00005000 08:01 279762     /usr/lib/nautilus/extensions-2.0/libnautilus-brasero-extension.so
b554c000-b554e000 r-xp 00000000 08:01 392519     /lib/libkeyutils-1.2.so
b554e000-b554f000 r--p 00001000 08:01 392519     /lib/libkeyutils-1.2.so
b554f000-b5550000 rw-p 00002000 08:01 392519     /lib/libkeyutils-1.2.so
b5550000-b5557000 r-xp 00000000 08:01 231116     /usr/lib/libkrb5support.so.0.1
b5557000-b5558000 r--p 00006000 08:01 231116     /usr/lib/libkrb5support.so.0.1
b5558000-b5559000 rw-p 00007000 08:01 231116     /usr/lib/libkrb5support.so.0.1
b5559000-b5582000 r-xp 00000000 08:01 230963     /usr/lib/libgssapi_krb5.so.2.2
b5582000-b5583000 r--p 00028000 08:01 230963     /usr/lib/libgssapi_krb5.so.2.2
b5583000-b5584000 rw-p 00029000 08:01 230963     /usr/lib/libgssapi_krb5.so.2.2
b5584000-b5586000 r-xp 00000000 08:01 392496     /lib/libcom_err.so.2.1
b5586000-b5587000 r--p 00001000 08:01 392496     /lib/libcom_err.so.2.1
b5587000-b5588000 rw-p 00002000 08:01 392496     /lib/libcom_err.so.2.1
b5588000-b55aa000 r-xp 00000000 08:01 231108     /usr/lib/libk5crypto.so.3.1
b55aa000-b55ab000 r--p 00022000 08:01 231108     /usr/lib/libk5crypto.so.3.1
b55ab000-b55ac000 rw-p 00023000 08:01 231108     /usr/lib/libk5crypto.so.3.1
b55ac000-b563b000 r-xp 00000000 08:01 231114     /usr/lib/libkrb5.so.3.3
b563b000-b563d000 r--p 0008e000 08:01 231114     /usr/lib/libkrb5.so.3.3
b563d000-b563e000 rw-p 00090000 08:01 231114     /usr/lib/libkrb5.so.3.3
b563e000-b5670000 r-xp 00000000 08:01 231202     /usr/lib/libnspr4.so
b5670000-b5671000 r--p 00031000 08:01 231202     /usr/lib/libnspr4.so
b5671000-b5672000 rw-p 00032000 08:01 231202     /usr/lib/libnspr4.so
b5672000-b5674000 rw-p b5672000 00:00 0 
b5674000-b5677000 r-xp 00000000 08:01 231267     /usr/lib/libplc4.so
b5677000-b5678000 r--p 00002000 08:01 231267     /usr/lib/libplc4.so
b5678000-b5679000 rw-p 00003000 08:01 231267     /usr/lib/libplc4.so
b5679000-b567b000 r-xp 00000000 08:01 231269     /usr/lib/libplds4.so
b567b000-b567c000 r--p 00001000 08:01 231269     /usr/lib/libplds4.so
b567c000-b567d000 rw-p 00002000 08:01 231269     /usr/lib/libplds4.so
b567d000-b56aa000 r-xp 00000000 08:01 231393     /usr/lib/libssl3.so
b56aa000-b56ac000 r--p 0002c0Aborted (core dumped)