I have libphysfs-1.0-0 = 1.0.0-5 (hardy) and
libphysfs-dev = 1.0.0-5 (hardy) installed
Mythbuntu/ubuntu 8.04.1 x64

I just did the following ( with the music files and music file clear) this could be related but not sure.

warzone2100 --debug=error --debug=sound --debug=memory --debugfile=/tmp/wz2100.txt --sound

I started tutorial and dropped out to the menu

--- Starting log ---
sound |000000000000: [PrintOpenALVersion] OpenAL Vendor: OpenAL Community
sound |000000000000: [PrintOpenALVersion] OpenAL Version: 1.1
sound |000000000000: [PrintOpenALVersion] OpenAL Renderer: Software
sound |000000000000: [PrintOpenALVersion] OpenAL Extensions: ALC_EXT_capture AL_EXT_capture AL_EXT_vorbis AL_EXT_MP3 AL_LOKI_quadriphonic AL_LOKI_play_position AL_LOKI_WAVE_format AL_LOKI_IMA_ADPCM_format AL_LOKI_buffer_data_callback ALC^X
sound |000000000000: [cdAudio_Open] called(music)
sound |000000000002: [cdAudio_PlayTrack] called(0)
sound |000000000002: [cdAudio_OpenTrack] called(music/menu.ogg)
sound |000000000002: [cdAudio_Stop] called, cdStream=(nil)
sound |000000000002: [scrPlayIngameCDAudio] Script wanted music to start
sound |000000000002: [cdAudio_PlayTrack] called(1)
sound |000000000002: [scrStopCDAudio] Script wanted music to stop
sound |000000000002: [cdAudio_Stop] called, cdStream=(nil)
sound |000000004033: [__sound_GetError] OpenAL raised an error: "AL_INVALID_NAME: Invalid name parameter passed"; at openal_track.c:1055
sound |000000004033: [cdAudio_Stop] called, cdStream=(nil)
sound |000000000002: [cdAudio_PlayTrack] called(0)
sound |000000000002: [cdAudio_OpenTrack] called(music/menu.ogg)
sound |000000000002: [cdAudio_Stop] called, cdStream=(nil)
sound |000000002030: [cdAudio_Close] called
sound |000000002030: [cdAudio_Stop] called, cdStream=(nil)
sound |000000002030: [sound_ShutdownLibrary] starting shutdown
sound |000000002030: [sound_ShutdownLibrary] make default context NULL
sound |000000002030: [sound_ShutdownLibrary] destroy previous context
sound |000000002030: [sound_ShutdownLibrary] close device
~

I cleared

~/warzone/data/base/music/music.wpl ( vim + deleted the 2 lines)

~/warzone# make uninstall && make clean
~/warzone# ./autogen.sh
~/warzone# ./configure && make && make install

loaded game
menu.ogg was playing on the menu screen
I clicked on fast play and crash

~/warzone/data/base/music# rm *.ogg

~/warzone# make uninstall && make clean
~/warzone# ./autogen.sh
~/warzone# ./configure && make && make install

loaded game
no playing on the menu screen
I clicked on fast play and no crash

the svn music.wpl looks like

track1.ogg
track2.ogg

but this page has this format ( http://forums.wz2100.net/viewtopic.php?f=1&t=1923&st=0&sk=t&sd=a&start=15 )

[game]
path=.
shuffle=yes
track1.ogg
track2.ogg

[menu]
path=.
shuffle=yes
track1.ogg
track2.ogg

sound |000000000002: [cdAudio_PlayTrack] called(0)
sound |000000000002: [cdAudio_OpenTrack] called(music/menu.ogg)
sound |000000000002: [cdAudio_Stop] called, cdStream=(nil)
sound |000000000002: [cdAudio_OpenTrack] successful(music/menu.ogg)
...
sound |000000000002: [cdAudio_PlayTrack] called(1)
sound |000000000002: [cdAudio_OpenTrack] called(music/track1.ogg)
sound |000000000002: [cdAudio_Stop] called, cdStream=0x168bf70

I have a guesses about this

the game is looking in the wrong place for the music listed in the music.wpl file when path is not listed?

wz2100.txt is a full debugfile from start to crash

(file #4718, file #4719)