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Re: 0 byte mp3 file
when I use convert/save I get a zero byte mp3 file. The dvd plays ok.

Using convert/save results in a file of 0 bytes .. no error message. ... on windows 10.
Log:

• main debug: Converting cdda:///D:/ is at 0
  main debug: creating new input thread
  main debug: Creating an input for 'Converting cdda:///D:/'
  main debug: requesting art for new input thread
  main debug: using sout chain=`transcode{vcodec=none,acodec=mp3,ab=128,channels=2,samplerate=44100,scodec=none}:std{access=file{no-overwrite},mux=mp3,dst='C:/Users/eddy/Music/Built to last/01 Built to last/01.mp3'}'
  main debug: stream=`std'
  main debug: looking for sout stream module matching "std": 23 candidates
  main debug: set config option: sout-standard-access to file{no-overwrite}
  main debug: set config option: sout-standard-mux to mp3
  main debug: looking for meta fetcher module matching "any": 1 candidates
  main debug: set config option: sout-standard-dst to C:/Users/eddy/Music/Built to last/01 Built to last/01.mp3
  main debug: looking for sout access module matching "file": 11 candidates
  lua debug: Trying Lua scripts in C:\Users\eddy\AppData\Roaming\vlc\lua\meta\fetcher
  lua debug: Trying Lua scripts in C:\Program Files (x86)\VideoLAN\VLC\lua\meta\fetcher
  main debug: no meta fetcher modules matched
  main debug: looking for art finder module matching "any": 2 candidates
  lua debug: Trying Lua scripts in C:\Users\eddy\AppData\Roaming\vlc\lua\meta\art
  lua debug: Trying Lua scripts in C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art
  lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\00_musicbrainz.luac
  main debug: set config option: sout-file-overwrite to (null)
  qt debug: IM: Setting an input
  file debug: file access output opened (C:/Users/eddy/Music/Built to last/01 Built to last/01.mp3)
  main debug: using sout access module "file"
  main debug: looking for sout mux module matching "mp3": 11 candidates
  main debug: no sout mux modules matched
  stream_out_standard debug: Couldn't open mux `mp3', trying `raw' instead
  main debug: looking for sout mux module matching "raw": 11 candidates
  lua debug: skipping script (unmatched scope) C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\00_musicbrainz.luac
  lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\01_googleimage.luac
  lua debug: skipping script (unmatched scope) C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\01_googleimage.luac
  lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\02_frenchtv.luac
  dummy debug: Dummy/Raw muxer opened
  dummy: Open
  main debug: using sout mux module "dummy"
  main debug: muxer support adding stream at any time
  main debug: muxer prefers to wait for all ES before starting to mux
  stream_out_standard debug: using `file{no-overwrite}/mp3://C:/Users/eddy/Music/Built to last/01 Built to last/01.mp3'
  main debug: using sout stream module "stream_out_standard"
  main debug: stream=`transcode'
  main debug: looking for sout stream module matching "transcode": 23 candidates
  lua debug: skipping script (unmatched scope) C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\02_frenchtv.luac
  lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\03_lastfm.luac
  lua debug: skipping script (unmatched scope) C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\03_lastfm.luac
  main debug: no art finder modules matched
  main debug: set config option: sout-transcode-vcodec to none
  main debug: set config option: sout-transcode-acodec to mp3
  main debug: set config option: sout-transcode-ab to 128
  main debug: set config option: sout-transcode-channels to 2
  main debug: set config option: sout-transcode-samplerate to 44100
  main debug: set config option: sout-transcode-scodec to none
  stream_out_transcode debug: Checking codec mapping for mp3 got mp3
  stream_out_transcode debug: codec audio=mp3 44100Hz 2 channels 128Kb/s
  stream_out_transcode debug: Checking video codec mapping for none got none
  stream_out_transcode debug: codec video=none 0x0 scaling: 0.000000 0kb/s
  stream_out_transcode debug: Checking spu codec mapping for none got none
  stream_out_transcode debug: codec spu=none
  
  
  ...
  
  scaletempo debug: format: 44100 rate, 2 nch, 4 bps, fl32
  scaletempo debug: params: 30 stride, 0.200 overlap, 14 search
  scaletempo debug: 1.000 scale, 1323.000 stride_in, 1323 stride_out, 1059 standing, 264 overlap, 617 search, 2204 queue, fl32 mode
  main debug: using audio filter module "scaletempo"
  main debug: conversion: 's16l'->'f32l' 44100 Hz->44100 Hz Stereo->Stereo
  main debug: looking for audio converter module matching "any": 8 candidates
  audio_format debug: s16l->f32l, bits per sample: 16->32
  main debug: using audio converter module "audio_format"
  main debug: conversion pipeline complete
  main debug: conversion: 'f32l'->'f32l' 44100 Hz->44100 Hz Stereo->Ster

Re: Record button .. invalid .wav
Also - using Record button looks to produce an invalid .wav file.

I play an audio dvd. Hit the red record button. Stop recording. Open the file "vlc-record-2021-03-20-10h46m33s-Audio CD - Track 01-.wav" with VLC.
Then I get the below error. ... but the thing is, VLC is able to play the audio DVD correctly.

Unidentified codec:
VLC could not identify the audio or video codec

I was having a similar problem recently. The output file gets created, but with zero bytes. This is my current solution. After VLC is done with the conversion/streaming, close the program window or open the zero byte output file from the same VLC window (ie. not by double clicking and opening the file in another VLC window). Suddenly the file comes to size and is viewable. It looks like the process doesn't get completed until that instance of VLC is assigned another task or is closed. Am on Windows 10. VLC 3.0.12.

I was having a similar problem recently. The output file gets created, but with zero bytes. This is my current solution. After VLC is done with the conversion/streaming, close the program window or open the zero byte output file from the same VLC window (ie. not by double clicking and opening the file in another VLC window). Suddenly the file comes to size and is viewable. It looks like the process doesn't get completed until that instance of VLC is assigned another task or is closed. Am on Windows 10. VLC 3.0.12.

I do not understand "close the program window or open the zero byte output file from the same VLC window" if you have to "close the program window" how could you open the output file from the same window? That window is closed now.

Please explain me better, thanks.

I was having a similar problem recently. The output file gets created, but with zero bytes. This is my current solution. After VLC is done with the conversion/streaming, close the program window or open the zero byte output file from the same VLC window (ie. not by double clicking and opening the file in another VLC window). Suddenly the file comes to size and is viewable. It looks like the process doesn't get completed until that instance of VLC is assigned another task or is closed. Am on Windows 10. VLC 3.0.12.

This method did not work for me. I am on Ubuntu 21.10 using VLC 3.0.16. I have successfully converted from .amr to .mp3 successfully in the past 6 months. I'm not sure if it was under the same version though.

Hey, I might have a solution for this problem, when you first time load video via link and it starts playing click ctrl+j for viewing codec and copy the codec address, then when you convert the video past CODEC address NOT url, sometimes this bugs out and you gotta do it for second time but should work. I hope it help ill also post this answer to two or three different threads with same question