So, i FINALLY got it reproduced, cause i havent had the time to do so...
it can be forced, when you jump in the middle or so of the dvd... this time i tried the pal version of the incredibles...
the chapter jumps however do work and playing it through works nearly always too...
so here's the log
main debug: creating new input thread
main debug: waiting for thread completion
main debug: `dvd:G:\@1:0' gives access `dvd' demux `' path `G:\@1:0'
main debug: source=`G:\' title=1/0 seekpoint=1/0
main debug: creating demux: access='dvd' demux='' path='G:\'
main debug: looking for access_demux module: 2 candidates
main debug: thread 3644 (input) created at priority 1 (src/input/input.c:230)
dvdnav debug: trying to go to dvd menu
main debug: thread 4156 (dvdnav event thread handler) created at priority 0 (dvdnav.c:336)
main debug: using access_demux module "dvdnav"
main debug: `dvd:G:\@1:0' successfully opened
dvdnav debug: DVDNAV_HOP_CHANNEL
main debug: control type=10
dvdnav debug: DVDNAV_HOP_CHANNEL
dvdnav debug: DVDNAV_VTS_CHANGE
dvdnav debug: - vtsN=1
dvdnav debug: - domain=2
dvdnav debug: DVDNAV_CELL_CHANGE
dvdnav debug: - cellN=1
dvdnav debug: - pgN=1
dvdnav debug: - cell_length=2754000
dvdnav debug: - pg_length=47955600
dvdnav debug: - pgc_length=597308400
dvdnav debug: - cell_start=0
dvdnav debug: - pg_start=0
dvdnav debug: DVDNAV_SPU_CLUT_CHANGE
main debug: selecting program id=0
dvdnav debug: DVDNAV_SPU_STREAM_CHANGE
dvdnav debug: - physical_wide=128
dvdnav debug: - physical_letterbox=128
dvdnav debug: - physical_pan_scan=128
dvdnav debug: buttonUpdate not done b=1 t=1
dvdnav debug: DVDNAV_AUDIO_STREAM_CHANGE
dvdnav debug: - physical=0
dvdnav debug: buttonUpdate not done b=1 t=1
main debug: looking for decoder module: 24 candidates
main debug: using decoder module "libmpeg2"
main debug: thread 3500 (decoder) created at priority 0 (src/input/decoder.c:159)
dvdnav debug: buttonUpdate not done b=1 t=1
libmpeg2 debug: 720x576, aspect 768000, 25.000 fps
main debug: no usable vout present, spawning one
main debug: looking for video output module: 5 candidates
vout_directx debug: creating DirectXEventThread
main debug: waiting for thread completion
vout_directx debug: DirectXCreateWindow
vout_directx debug: Created video sub-window
main debug: thread 3508 (DirectX Events Thread) created at priority 0 (directx.c:261)
vout_directx debug: DirectXEventThread running
vout_directx debug: DirectXInitDDraw
vout_directx debug: directx-device:
vout_directx debug:
vout_directx debug: DirectXEnumCallback: RADEON 9800 XT , \\.\DISPLAY1
vout_directx debug: selecting RADEON 9800 XT , \\.\DISPLAY1
main debug: Registering subpicture channel, ID: 2
main debug: Registering subpicture channel, ID: 3
main debug: Registering subpicture channel, ID: 4
main debug: Registering subpicture channel, ID: 5
vout_directx debug: screen dimensions (0x0,1280x1024)
vout_directx debug: DirectDraw Capabilities: overlay=1 yuvoverlay=1 can_deinterlace_overlay=1 colorkey=1 stretch=1 bltfourcc=1
vout_directx debug: End DirectXInitDDraw
vout_directx debug: DirectXCreateDisplay
vout_directx debug: DirectXCreateClipper
main debug: using video output module "vout_directx"
vout_directx debug: NewPictureVec overlay:yes chroma:YV12
vout_directx debug: YUV overlay created successfully
vout_directx debug: End NewPictureVec (succeeded)
main debug: got 1 direct buffer(s)
main debug: picture in 720x576 (0,0,720x576), chroma I420, ar 16:9, sar 64:45
main debug: picture user 720x576 (0,0,720x576), chroma I420, ar 16:9, sar 64:45
main debug: picture out 720x576, chroma I420, ar 16:9, sar 64:45
main debug: direct render, mapping render pictures 0-6 to system pictures 1-7
main debug: waiting for thread completion
main debug: looking for decoder module: 24 candidates
main debug: thread 4208 (video output) created at priority 1 (src/video_output/video_output.c:466)
main debug: using decoder module "a52"
main debug: thread 4140 (decoder) created at priority 2 (src/input/decoder.c:159)
a52: A/52 channels:6 samplerate:48000 bitrate:448000
main debug: looking for audio output module: 3 candidates
aout_directx debug: OpenAudio
aout_directx debug:
aout_directx debug: found device: NVIDIA(R) nForce(TM) Audio
aout_directx debug: found device: Bluetooth-Audio
aout_directx debug: device supports 5.1 channels
aout_directx debug: device supports 4 channels
aout_directx debug: device supports 2 channels
aout_directx debug: device supports 1 channel
aout_directx debug: device supports A/52 over S/PDIF
aout_directx debug: channel reordering needed
aout_directx debug: creating DirectSoundThread
main debug: thread 4064 (DirectSound Notification Thread) created at priority 15 (directx.c:386)
aout_directx debug: DirectSoundThread ready
main debug: using audio output module "aout_directx"
main debug: output 's16l' 48000 Hz 3F2R/LFE frame=1 samples/12 bytes
main debug: mixer 's16l' 48000 Hz 3F2R/LFE frame=1 samples/12 bytes
main debug: filter(s) 'fl32'->'s16l' 48000 Hz->48000 Hz 3F2R/LFE->3F2R/LFE
main debug: looking for audio filter module: 22 candidates
main debug: using audio filter module "float32tos16"
main debug: found a filter for the whole conversion
main debug: looking for audio mixer module: 3 candidates
main debug: using audio mixer module "trivial_mixer"
main debug: input 'a52 ' 48000 Hz 3F2R/LFE frame=1536 samples/1792 bytes
main debug: filter(s) 'a52 '->'fl32' 48000 Hz->48000 Hz 3F2R/LFE->3F2R/LFE
main debug: looking for audio filter module: 22 candidates
main debug: using audio filter module "a52tofloat32"
main debug: found a filter for the whole conversion
main debug: filter(s) 'fl32'->'fl32' 52800 Hz->48000 Hz 3F2R/LFE->3F2R/LFE
main debug: looking for audio filter module: 22 candidates
main debug: using audio filter module "bandlimited_resampler"
main debug: found a filter for the whole conversion
main warning: dts != current_pts (259162)
main warning: backward_pts != current_pts (-40000)
main debug: control type=5
dvdnav debug: DVDNAV_HOP_CHANNEL
dvdnav debug: DVDNAV_CELL_CHANGE
dvdnav debug: - cellN=16
dvdnav debug: - pgN=6
dvdnav debug: - cell_length=31816800
dvdnav debug: - pg_length=31816800
dvdnav debug: - pgc_length=597308400
dvdnav debug: - cell_start=107542800
dvdnav debug: - pg_start=107542800
dvdnav debug: DVDNAV_SPU_CLUT_CHANGE
dvdnav debug: DVDNAV_SPU_STREAM_CHANGE
dvdnav debug: - physical_wide=128
dvdnav debug: - physical_letterbox=128
dvdnav debug: - physical_pan_scan=128
dvdnav debug: buttonUpdate not done b=1 t=1
dvdnav debug: DVDNAV_AUDIO_STREAM_CHANGE
dvdnav debug: - physical=0
dvdnav warning: cannot get next block (Expected NAV packet but none found.)
main debug: closing input
main debug: thread times: real 0m5.406250s, kernel 0m0.000000s, user 0m0.000000s
main debug: thread 4156 joined (dvdnav.c:352)
main debug: unlocking module "libmpeg2"
main debug: thread times: real 0m5.281250s, kernel 0m0.031250s, user 0m0.234375s
main debug: thread 3500 joined (src/input/decoder.c:191)
main debug: killing decoder fourcc `mpgv', 0 PES in FIFO
main debug: unlocking module "a52"
main debug: thread times: real 0m4.890625s, kernel 0m0.046875s, user 0m0.046875s
main debug: thread 4140 joined (src/input/decoder.c:191)
main debug: killing decoder fourcc `a52 ', 0 PES in FIFO
main debug: unlocking module "a52tofloat32"
main debug: unlocking module "bandlimited_resampler"
aout_directx debug: CloseAudio
aout_directx debug: DirectSoundThread exiting
main debug: thread times: real 0m4.828125s, kernel 0m0.015625s, user 0m0.015625s
main debug: thread 4064 joined (directx.c:605)
main debug: unlocking module "aout_directx"
main debug: unlocking module "float32tos16"
main debug: unlocking module "trivial_mixer"
main debug: Program doesn't contain anymore ES
main debug: unlocking module "dvdnav"
main debug: thread times: real 0m5.734375s, kernel 0m0.015625s, user 0m0.000000s
main debug: thread 3644 joined (src/input/input.c:386)
main: nothing to play
main debug: garbage collector destroying 1 vout
vout_directx debug: DirectXCloseSurface
vout_directx debug: DirectXCloseDisplay
vout_directx debug: DirectXCloseDisplay clipper
vout_directx debug: DirectXCloseDisplay display
vout_directx debug: DirectXCloseDDraw
vout_directx debug: CloseVideo
vout_directx debug: DirectXEventThread terminating
vout_directx debug: DirectXCloseWindow
vout_directx debug: WinProc WM_DESTROY
main debug: thread times: real 0m6.359375s, kernel 0m0.015625s, user 0m0.000000s
main debug: thread 3508 joined (directx.c:460)
main debug: unlocking module "vout_directx"
main debug: thread times: real 0m6.203125s, kernel 0m0.984375s, user 0m0.109375s
main debug: thread 4208 joined (src/video_output/video_output.c:506)