In Ubuntu Lucid  Peter Schaefer reported:

Steps to reproduce:

1) Insert a SD-memory card containing the magic file ".is_audio_player" into the pc's card reader.

2) Wait till the removable device comes up in rhythmbox.

3) Create a playlist on the device.

4) Drag-and-drop an entry from a playlist residing already on the computer onto the newly created playlist.

5) Crash

ProblemType: Crash
DistroRelease: Ubuntu 10.04
Package: rhythmbox 0.12.8-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Tue Apr 20 20:08:12 2010
ExecutablePath: /usr/bin/rhythmbox
ProcCmdline: rhythmbox
ProcEnviron:
 PATH=(custom, user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fc963f9dd68 <save_playlist+504>: mov 0x8(%rax),%rcx
 PC (0x7fc963f9dd68) ok
 source "0x8(%rax)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%rcx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: rhythmbox
StacktraceTop:
 save_playlist (source=<value optimized out>) at rb-generic-player-playlist-source.c:276
 ?? () from /lib/libglib-2.0.so.0
 g_main_context_dispatch () from /lib/libglib-2.0.so.0
 ?? () from /lib/libglib-2.0.so.0
 g_main_loop_run () from /lib/libglib-2.0.so.0
Title: rhythmbox crashed with SIGSEGV in save_playlist()
UserGroups: adm admin audio cdrom dialout dip fax floppy fuse libvirtd lpadmin plugdev sambashare tape vboxusers video

Launchpad ref: https://bugs.edge.launchpad.net/ubuntu/+source/rhythmbox/+bug/567399

Thanks!