read failed for block 0

[johann]

I have made several DVDs using a Panasonic DVD recorder. Whenever I try to play them, all I get is the DVDs title menu. Clicking on one of the menu items causes the video window to close. Messages are as follows:

main debug: creating new input thread
main debug: waiting for thread completion
main debug: `dvd://G:' gives access `dvd' demux `' path `G:'
main debug: creating demux: access='dvd' demux='' path='G:'
main debug: looking for access_demux module: 2 candidates
main debug: thread 4068 (input) created at priority 1 (src/input/input.c:230)
dvdnav debug: trying to go to dvd menu
main debug: thread 3788 (dvdnav event thread handler) created at priority 0 (dvdnav.c:336)
main debug: using access_demux module "dvdnav"
main debug: `dvd://G:' successfully opened
dvdnav debug: DVDNAV_HOP_CHANNEL
dvdnav debug: DVDNAV_VTS_CHANGE
dvdnav debug: - vtsN=1
dvdnav debug: - domain=4
dvdnav debug: DVDNAV_CELL_CHANGE
dvdnav debug: - cellN=1
dvdnav debug: - pgN=1
dvdnav debug: - cell_length=43200
dvdnav debug: - pg_length=43200
dvdnav debug: - pgc_length=43200
dvdnav debug: - cell_start=0
dvdnav debug: - pg_start=0
dvdnav debug: DVDNAV_SPU_CLUT_CHANGE
dvdnav debug: DVDNAV_SPU_STREAM_CHANGE
dvdnav debug: - physical_wide=0
dvdnav debug: - physical_letterbox=0
dvdnav debug: - physical_pan_scan=0
dvdnav debug: buttonUpdate 1
main debug: selecting program id=0
main debug: looking for decoder module: 24 candidates
main debug: using decoder module "spudec"
main debug: thread 3932 (decoder) created at priority 0 (src/input/decoder.c:159)
dvdnav debug: DVDNAV_AUDIO_STREAM_CHANGE
dvdnav debug: - physical=0
dvdnav debug: buttonUpdate 1
main debug: looking for decoder module: 24 candidates
main debug: using decoder module "libmpeg2"
main debug: thread 4140 (decoder) created at priority 0 (src/input/decoder.c:159)
dvdnav debug: buttonUpdate 1
libmpeg2 debug: 704x576, aspect 576000, 25.000 fps
main debug: no usable vout present, spawning one
main debug: crop: 70,118,289,84, palette forced: 1
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
spudec debug: SPU packets size=5970 should be 5970
dvdnav debug: DVDNAV_NOP
dvdnav debug: DVDNAV_WAIT
dvdnav debug: DVDNAV_STILL_FRAME
dvdnav debug: - length=0xff
main debug: Registering subpicture channel, ID: 6
spudec warning: ignoring blank alpha palette
spudec debug: valid subtitle, size: 720x573, position: 0,2
spudec debug: cropped to: 720x373, position: 0,118
spudec debug: total size: 0x1752, RLE offsets: 0x0 0xb99
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 4124 (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 7000 / Radeon VE (Microsoft Corporation) , \\.\DISPLAY1
vout_directx debug: selecting Radeon 7000 / Radeon VE (Microsoft Corporation) , \\.\DISPLAY1
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 704x576 (0,0,704x576), chroma I420, ar 4:3, sar 12:11
main debug: picture user 704x576 (0,0,704x576), chroma I420, ar 4:3, sar 12:11
main debug: picture out 704x576, chroma I420, ar 4:3, sar 12:11
main debug: direct render, mapping render pictures 0-6 to system pictures 1-7
main debug: waiting for thread completion
main debug: thread 3940 (video output) created at priority 1 (src/video_output/video_output.c:466)
main warning: dts != current_pts (118171)
main debug: looking for video blending module: 1 candidate
blend debug: chroma: YUVP -> I420
main debug: using video blending module "blend"
main debug: looking for text renderer module: 2 candidates
freetype debug: Using fontsize: 36
main debug: using text renderer module "freetype"
dvdnav debug: buttonUpdate not done b=1 t=1
dvdnav debug: DVDNAV_HOP_CHANNEL
dvdnav debug: DVDNAV_VTS_CHANGE
dvdnav debug: - vtsN=1
dvdnav debug: - domain=2
main debug: unlocking module "libmpeg2"
main debug: thread times: real 0m3.281250s, kernel 0m0.000000s, user 0m0.015625s
main debug: thread 4140 joined (src/input/decoder.c:191)
main debug: killing decoder fourcc `mpgv', 0 PES in FIFO
main debug: unlocking module "spudec"
main debug: thread times: real 0m3.406250s, kernel 0m0.000000s, user 0m0.000000s
main debug: thread 3932 joined (src/input/decoder.c:191)
main debug: killing decoder fourcc `spu ', 0 PES in FIFO
main debug: Program doesn't contain anymore ES
dvdnav debug: DVDNAV_CELL_CHANGE
dvdnav debug: - cellN=1
dvdnav debug: - pgN=1
dvdnav debug: - cell_length=2851200
dvdnav debug: - pg_length=29764800
dvdnav debug: - pgc_length=252201600
dvdnav debug: - cell_start=0
dvdnav debug: - pg_start=0
dvdnav debug: DVDNAV_SPU_CLUT_CHANGE
dvdnav debug: DVDNAV_SPU_STREAM_CHANGE
dvdnav debug: - physical_wide=-1
dvdnav debug: - physical_letterbox=-1
dvdnav debug: - physical_pan_scan=-1
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 (Error reading NAV packet.)
main debug: closing input
main debug: thread times: real 0m3.546875s, kernel 0m0.000000s, user 0m0.000000s
main debug: thread 3788 joined (dvdnav.c:352)
main debug: unlocking module "dvdnav"
main debug: thread times: real 0m14.781250s, kernel 0m0.046875s, user 0m0.015625s
main debug: thread 4068 joined (src/input/input.c:386)
main warning: refcount is 1, delaying before deletion
main: nothing to play
main debug: garbage collector destroying 1 vout
main debug: unlocking module "blend"
main debug: unlocking module "freetype"
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 0m3.625000s, kernel 0m0.015625s, user 0m0.000000s
main debug: thread 4124 joined (directx.c:460)
main debug: unlocking module "vout_directx"
main debug: thread times: real 0m3.531250s, kernel 0m0.000000s, user 0m0.015625s
main debug: thread 3940 joined (src/video_output/video_output.c:506)

Could anyone help me?

[The DJ]

VLC says that the NAV packets (The DVD specific packets), are incorrect. Without having one of these discs and doing some pretty hefty low level debuging, there is no way to find out what the exact reason is. (ergo to discover if the disc is incorrectly created, or wether it uses a corner case scenario which is not supported in VLC).

The fact that other players might play a certain DVD is no prove btw that a disc is correctly created.