I have the same problem. Here are the output from the command "jack" with a music CD in the CDROM drive. Can someone help resolve this? jack is an excellent ripper.

This is jack 3.1.1 (C)2004 Arne Zellentin <email address hidden>
 if create_dirs is set and freedb data is
 *info* matching dir found: ./jack-7e0bcb1a
^[(B^[)0^[[?1049h^[[1;24r^[[m^[[4lTraceback (most recent call last):
  File "/usr/bin/jack", line 234, in <module>
    jack_term.enable()
  File "/var/lib/python-support/python2.5/jack_term.py", line 187, in enable
    tmod.enable()
  File "/var/lib/python-support/python2.5/jack_t_curses.py", line 93, in enable
    noecho() ; cbreak()
curses.error: cbreak() returned ERR
 *warning* abnormal exit

*** glibc detected *** /usr/bin/python: munmap_chunk(): invalid pointer: 0xb7cbc
2f0 ***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6(cfree+0x1bb)[0xb7dac92b]
/var/lib/python-support/python2.5/jack_cursesmodule.so[0xb77f0117]
/usr/bin/python[0x80855f9]
/usr/bin/python(PyDict_SetItem+0x6e)[0x8086f5e]
/usr/bin/python(_PyModule_Clear+0x158)[0x8088bb8]
/usr/bin/python(PyImport_Cleanup+0x33a)[0x80dd2ca]
/usr/bin/python(Py_Finalize+0xbf)[0x80e931f]
/usr/bin/python[0x80e8e6a]
/usr/bin/python(PyErr_PrintEx+0x195)[0x80e9065]
/usr/bin/python(PyRun_SimpleFileExFlags+0xe3)[0x80e9883]
/usr/bin/python(Py_Main+0x9c0)[0x8059390]
/usr/bin/python(main+0x22)[0x80588c2]
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe0)[0xb7d55050]
/usr/bin/python[0x8058831]
======= Memory map: ========
08048000-0813f000 r-xp 00000000 03:06 604204     /usr/bin/python2.5
0813f000-08164000 rw-p 000f6000 03:06 604204     /usr/bin/python2.5
08164000-082ab000 rw-p 08164000 00:00 0          [heap]
b7780000-b778a000 r-xp 00000000 03:06 197629     /lib/libgcc_s.so.1
b778a000-b778b000 rw-p 0000a000 03:06 197629     /lib/libgcc_s.so.1
b778b000-b77c7000 r-xp 00000000 03:06 196224     /lib/libncurses.so.5.6
b77c7000-b77cf000 rw-p 0003b000 03:06 196224     /lib/libncurses.so.5.6
b77ea000-b77f6000 r-xp 00000000 03:06 995618     /usr/lib/python-support/jack/py
thon2.5/jack_cursesmodule.so
b77f6000-b77f7000 rw-p 0000c000 03:06 995618     /usr/lib/python-support/jack/py
thon2.5/jack_cursesmodule.so
b77f7000-b7879000 rw-p b77f7000 00:00 0
b7879000-b7884000 r-xp 00000000 03:06 931260     /usr/lib/libvorbisenc.so.2.0.3
b7884000-b7972000 rw-p 0000b000 03:06 931260     /usr/lib/libvorbisenc.so.2.0.3
b7972000-b7979000 r-xp 00000000 03:06 931251     /usr/lib/libvorbisfile.so.3.2.0
b7979000-b797a000 rw-p 00006000 03:06 931251     /usr/lib/libvorbisfile.so.3.2.0
b797a000-b7994000 r-xp 00000000 03:06 931273     /usr/lib/libvorbis.so.0.4.0
b7994000-b79a2000 rw-p 0001a000 03:06 931273     /usr/lib/libvorbis.so.0.4.0
b79a5000-b79a7000 r-xp 00000000 03:06 983432     /usr/lib/python2.5/lib-dynload/
_heapq.so
b79a7000-b79a9000 rw-p 00002000 03:06 983432     /usr/lib/python2.5/lib-dynload/
_heapq.so
b79a9000-b79ae000 r-xp 00000000 03:06 980706     /usr/lib/python2.5/lib-dynload/
itertools.so
b79ae000-b79b0000 rw-p 00005000 03:06 980706     /usr/lib/python2.5/lib-dynload/itertools.so
b79b0000-b79b3000 r-xp 00000000 03:06 983670     /usr/lib/python2.5/lib-dynload/termios.so
b79b3000-b79b5000 rw-p 00002000 03:06 983670     /usr/lib/python2.5/lib-dynload/termios.so
b79b5000-b79bb000 r-xp 00000000 03:06 980660     /usr/lib/python2.5/lib-dynload/array.so
b79bb000-b79bd000 rw-p 00006000 03:06 980660     /usr/lib/python2.5/lib-dynload/array.so
b79bd000-b79bf000 r-xp 00000000 03:06 979240     /usr/lib/python2.5/lib-dynload/_random.so
b79bf000-b79c0000 rw-p 00002000 03:06 979240     /usr/lib/python2.5/lib-dynload/_random.so
b79c0000-b7a21000 rw-p b79c0000 00:00 0
b7a21000-b7b4c000 r-xp 00000000 03:06 114484     /usr/lib/i686/cmov/libcrypto.so.0.9.8
b7b4c000-b7b61000 rw-p 0012a000 03:06 114484     /usr/lib/i686/cmov/libcrypto.so.0.9.8
b7b61000-b7b64000 rw-p b7b61000 00:00 0
b7b64000-b7ba1000 r-xp 00000000 03:06 114485     /usr/lib/i686/cmov/libssl.so.0.9.8
b7ba1000-b7ba5000 rw-p 0003c000 03:06 114485     /usr/lib/i686/cmov/libssl.so.0.9.8
b7ba6000-b7ba7000 r-xp 00000000 03:06 983431     /usr/lib/python2.5/lib-dynload/_bisect.so
b7ba7000-b7ba8000 rw-p 00001000 03:06 983431     /usr/lib/python2.5/lib-dynload/_bisect.so
b7ba8000-b7baa000 r-xp 00000000 03:06 983666     /usr/lib/python2.5/lib-dynload/_hashlib.so
b7baa000-b7bab000 rw-p 00002000 03:06 983666     /usr/lib/python2.5/lib-dynload/_hashlib.so
b7bab000-b7bb4000 r-xp 00000000 03:06 1012162    /usr/lib/python-support/python-pyvorbis/python2.5/ogg/vorbis.so
b7bb4000-b7bb6000 rw-p 00009000 03:06 1012162    /usr/lib/python-support/python-pyvorbis/python2.5/ogg/vorbis.so
b7bb6000-b7bba000 r-xp 00000000 03:06 930376     /usr/lib/libogg.so.0.5.3
b7bba000-b7bbb000 rw-p 00003000 03:06 930376     /usr/lib/libogg.so.0.5.3
b7bbb000-b7bbf000 r-xp 00000000 03:06 1012160    /usr/lib/python-support/python-pyogg/python2.5/ogg/_ogg.so
b7bbf000-b7bc0000 rw-p 00004000 03:06 1012160    /usr/lib/python-support/python-pyogg/python2.5/ogg/_ogg.so
b7bc0000-b7c01000 rw-p b7bc0000 00:00 0
b7c01000-b7c15000 r-xp 00000000 03:06 932484     /usr/lib/libz.so.1.2.3.3
b7c15000-b7c16000 rw-p 00013000 03:06 932484     /usr/lib/libz.so.1.2.3.3
b7c17000-b7c1b000 r-xp 00000000 03:06 980661     /usr/lib/python2.5/lib-dynload/binascii.so
b7c1b000-b7c1c000 rw-p 00003000 03:06 980661     /usr/lib/python2.5/lib-dynload/binascii.so
b7c1c000-b7c1f000 r-xp 00000000 03:06 980707     /usr/lib/python2.5/lib-dynload/math.so
b7c1f000-b7c20000 rw-p 00002000 03:06 980707     /usr/lib/python2.5/lib-dynload/math.so
b7c20000-b7c23000 r-xp 00000000 03:06 983665     /usr/lib/python2.5/lib-dynload/_ssl.so
b7c23000-b7c24000 rw-p 00003000 03:06 983665     /usr/lib/python2.5/lib-dynload/_ssl.so
b7c24000-b7c2e000 r-xp 00000000 03:06 980656     /usr/lib/python2.5/lib-dynload/_socket.so
b7c2e000-b7c31000 rw-p 0000a000 03:06 980656     /usr/lib/python2.5/lib-dynload/_socket.so
b7c31000-b7c35000 r-xp 00000000 03:06 980821     /usr/lib/python2.5/lib-dynload/zlib.so
b7c35000-b7c36000 rw-p 00004000 03:06 980821     /usr/lib/python2.5/lib-dynload/zlib.so
b7c36000-b7c38000 r-xp 00000000 03:06 980662     /usr/lib/python2.5/lib-dynload/fcntl.so
b7c38000-b7c39000 rw-p 00002000 03:06 980662     /usr/lib/python2.5/lib-dynload/fcntl.so
b7c39000-b7c3e000 r-xp 00000000 03:06 980708     /usr/lib/python2.5/lib-dynload/operator.so
b7c3e000-b7c3f000 rw-p 00005000 03:06 980708     /usr/lib/python2.5/lib-dynload/operator.so
b7c3f000-b7c42000 r-xp 00000000 03:06 983654     /usr/lib/python2.5/lib-dynload/_locale.so
b7c42000-b7c43000 rw-p 00003000 03:06 983654     /usr/lib/python2.5/lib-dynload/_locale.so
b7c43000-b7c84000 rw-p b7c43000 00:00 0
b7c85000-b7cbb000 r--p 00000000 03:06 505933     /usr/lib/locale/en_US/LC_CTYPE
b7cbb000-b7d3f000 rw-p b7cbb000 00:00 0
b7d3f000-b7e83000 r-xp 00000000 03:06 1077672    /lib/tls/i686/cmov/libc-2.6.1.so
b7e83000-b7e84000 r--p 00143000 03:06 1077672    /lib/tls/i686/cmov/libc-2.6.1.so
b7e84000-b7e86000 rw-p 00144000 03:06 1077672    /lib/tls/i686/cmov/libc-2.6.1.so
b7e86000-b7e89000 rw-p b7e86000 00:00 0
b7e89000-b7eac000 r-xp 00000000 03:06 1080044    /lib/tls/i686/cmov/libm-2.6.1.so
b7eac000-b7eae000 rw-p 00023000 03:06 1080044    /lib/tls/i686/cmov/libm-2.6.1.so
b7eae000-b7eb0000 r-xp 00000000 03:06 1080630    /lib/tls/i686/cmov/libutil-2.6.1.so
b7eb0000-b7eb2000 rw-p 00001000 03:06 1080630    /lib/tls/i686/cmov/libutil-2.6.1.so
b7eb2000-b7eb4000 r-xp 00000000 03:06 1080042    /lib/tls/i686/cmov/libdl-2.6.1.so
b7eb4000-b7eb6000 rw-p 00001000 03:06 1080042    /lib/tls/i686/cmov/libdl-2.6.1.so
b7eb6000-b7eca000 r-xp 00000000 03:06 1080625    /lib/tls/i686/cmov/libpthread-2.6.1.so
b7eca000-b7ecc000 rw-p 00013000 03:06 1080625    /lib/tls/i686/cmov/libpthread-2.6.1.so
b7ecc000-b7ecf000 rw-p b7ecc000 00:00 0
b7ecf000-b7ed0000 r-xp 00000000 03:06 1013351    /usr/lib/python-support/python-cddb/python2.5/cdrom.so
b7ed0000-b7ed1000 rw-p 00001000 03:06 1013351    /usr/lib/python-support/python-cddb/python2.5/cdrom.so
b7ed1000-b7ed4000 r-xp 00000000 03:06 980658     /usr/lib/python2.5/lib-dynload/cStringIO.so
b7ed4000-b7ed5000 rw-p 00003000 03:06 980658     /usr/lib/python2.5/lib-dynload/cStringIO.so
b7ed5000-b7ed8000 r-xp 00000000 03:06 980711     /usr/lib/python2.5/lib-dynload/select.so
b7ed8000-b7ed9000 rw-p 00002000 03:06 980711     /usr/lib/python2.5/lib-dynload/select.so
b7ed9000-b7edd000 r-xp 00000000 03:06 980778     /usr/lib/python2.5/lib-dynload/strop.so
b7edd000-b7edf000 rw-p 00003000 03:06 980778     /usr/lib/python2.5/lib-dynload/strop.so
b7edf000-b7ee4000 r-xp 00000000 03:06 980657     /usr/lib/python2.5/lib-dynload/_struct.so
b7ee4000-b7ee5000 rw-p 00005000 03:06 980657     /usr/lib/python2.5/lib-dynload/_struct.so
b7ee5000-b7ee8000 r-xp 00000000 03:06 980811     /usr/lib/python2.5/lib-dynload/time.so
b7ee8000-b7eea000 rw-p 00002000 03:06 980811     /usr/lib/python2.5/lib-dynload/time.so
b7eea000-b7eeb000 rw-p b7eea000 00:00 0
b7eeb000-b7f05000 r-xp 00000000 03:06 198965     /lib/ld-2.6.1.so
b7f05000-b7f07000 rw-p 00019000 03:06 198965     /lib/ld-2.6.1.so
bff07000-bff30000 rw-p bff07000 00:00 0          [stack]
ffffe000-fffff000 r-xp 00000000 00:00 0          [vdso]
Aborted (core dumped)