VSO Software Forum

Hi all,

Just recently started using ConvertX again. Had a few successful conversions then the last few attempts its saying "Conversion cancelled by user"

Log file below...any help much appreciated.

:std_log='C:\ProgramData\VSO\ConvertXtoDVD\7\Log\ConvertXtoDVD 7_mainlog.20210223.160547.960.log'
:library=false
:app_name=ConvertXtoDvd.exe
:app_version=7.0.0.61
:most_recent=first
:event_header='{time} {type}'
:LongDateFormat=yyyy"-"mm"-"dd
:ShortDateFormat=dd mmm
:LongTimeFormat=hh":"nn":"ss"."zzz
:ShortTimeFormat=hh":"nn":"ss
:status=started
:group_indent=4

16:45:25.190 Error [decoder][h264]: mmco: unref short failure
^^^Repeated 3 Times in 1 minute(s) 17 second(s) 704 millisecond(s)^^^
16:46:03.626 Group FFmpeg Decoder: "C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2019.mp4"
17:24:41.098 Info Conversion cancelled after 01:07:39
16:17:01.683 Info [ ] Loop playback
16:17:01.680 Info [ ] Play titles one after the other
16:17:01.677 Info [ ] Don't create title menu for single video
16:17:01.674 Info [x] Return to title menu after titleset playback
16:17:01.671 Info [ ] Skip root menu initially
16:17:01.668 Info [ ] Auto-start playback
16:17:01.665 Info Template: Metallic (open style), contains 4 page(s)
16:17:01.665 Group Video DVD menu options
16:17:01.662 Info Video DVD format: PAL (25 Fps)
16:17:01.659 Info Output target size : DVD-5 (4300 MB)
16:17:01.656 Info Number of core(s) used for encoding : 2
16:17:01.653 Info Number of core(s) used for decoding : 2
16:17:01.650 Info [ ] Use 2 pass encoding
16:17:01.647 Info [ ] Use best video quality settings
16:17:01.644 Info [ ] Use hardware decoding (if possible)
16:17:01.640 Info Max simultaneous conversions: 1
16:17:01.640 Group Advanced encoding options
16:17:00.570 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Crazy Grave Digger Moments.mp4
16:17:00.397 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Grave Digger 30th Anniversary.mp4
17:24:39.040 Error Error while encoding file: VTS_03_1.VOB
17:22:20.475 Error [decoder][aac]: decode_band_types: Input buffer exhausted before END element found
17:24:39.036 Group FFmpeg Decoder: "C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2021.mp4"
17:12:58.653 ------------ +--> [audio #2 - ac3 audio, 48000Hz, Stereo, 192000 bps]
+-[audio aac main audio 2 Ch. 44100Hz , 128 Kbps]
+--> [video #1 - mpeg2video video, 720x576, yuv420p, 16x9, 25.00Fps, 2720Kbps]
+-[video h264 1920x1080 16:9 yuv420p, 150.00Fps, 3913Kbps ]
Output file: C:\Users\Lee\Documents\ConvertXtoDVD\Monster Jam 2019\VIDEO_TS\VTS_03_1.VOB (DVD PAL)
Input file: C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2021.mp4
Video filters used:
- Output pixel format: YUV420P
- DeInterlace filter: VSO
- Upscale filter: Linear (VSO), Downscale filter: Linear (VSO). Fit method: letterbox (Padding: top: 0, bottom: 0, left: 0, right: 0. Cropping: top: 0, bottom: 0, left: 0, right: 0)
17:12:58.649 Info Chapters to generate: 5 (0h00m00s, 0h05m00s, 0h10m00s, 0h15m00s, 0h20m00s, )
17:12:58.646 Important Starting video encoding: [Memory load 63%] [Available virtual memory 1619 Mb.]
17:12:58.517 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2021.mp4
16:17:00.210 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2021.mp4
16:17:00.180 Group ******************** Titleset #3 - ~21 min. File: "Monster Jam 2021" -> VTS_03_1.VOB - DVD PAL ********************|GK_TITLESET|
17:12:58.384 ------------ ****************************************File encoded successfully: VTS_02_1.VOB*****************************************
17:12:58.379 Info "CHAPTERS 2/2 (Global 3/3)" menu built successfully
17:12:02.223 Info "CHAPTERS 1/2 (Global 2/3)" menu built successfully
17:10:44.414 Info "ROOT 1/1 (Global 1/3)" menu built successfully
17:10:19.900 Important Starting BD root menu encoding: [Memory load 63%] [Available virtual memory 1647 Mb.]
17:10:19.897 Info Building ROOT, CHAPTERS, menus using template: Metallic (open style)
17:10:19.737 Info DVD sectors written - video: 458813, audio: 32334, subtitle: 0
17:10:19.733 Info video #1 - Processed video frames: 81383 (67887 frames encoded, 13496 frames dropped, 0 frames duplicated)
16:47:24.010 ------------ +--> [audio #2 - ac3 audio, 48000Hz, Stereo, 192000 bps]
+-[audio aac main audio 2 Ch. 44100Hz , 128 Kbps]
+--> [video #1 - mpeg2video video, 720x576, yuv420p, 16x9, 25.00Fps, 2720Kbps]
+-[video h264 1920x1080 16:9 yuv420p, 29.97Fps, 4434Kbps ]
Output file: C:\Users\Lee\Documents\ConvertXtoDVD\Monster Jam 2019\VIDEO_TS\VTS_02_1.VOB (DVD PAL)
Input file: C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2020.mp4
Video filters used:
- Output pixel format: YUV420P
- DeInterlace filter: VSO
- Upscale filter: Linear (VSO), Downscale filter: Linear (VSO). Fit method: letterbox (Padding: top: 0, bottom: 0, left: 0, right: 0. Cropping: top: 0, bottom: 0, left: 0, right: 0)
16:47:24.006 Info Chapters to generate: 10 (0h00m00s, 0h05m00s, 0h10m00s, 0h15m00s, 0h20m00s, 0h25m00s, 0h30m00s, 0h35m00s, 0h40m00s, 0h45m00s, )
16:47:24.003 Important Starting video encoding: [Memory load 58%] [Available virtual memory 1618 Mb.]
16:47:23.764 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2020.mp4
16:16:59.928 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2020.mp4
16:16:59.871 Group ******************** Titleset #2 - ~45 min. File: "Monster Jam 2020" -> VTS_02_1.VOB - DVD PAL ********************|GK_TITLESET|
16:47:23.581 ------------ ****************************************File encoded successfully: VTS_01_1.VOB*****************************************
16:47:23.575 Info "CHAPTERS 3/3 (Global 4/4)" menu built successfully
16:46:42.648 Info "CHAPTERS 2/3 (Global 3/4)" menu built successfully
16:46:03.654 Info "CHAPTERS 1/3 (Global 2/4)" menu built successfully
16:45:22.595 Info "ROOT 1/1 (Global 1/4)" menu built successfully
16:45:07.741 Important Starting BD root menu encoding: [Memory load 56%] [Available virtual memory 1654 Mb.]
16:45:07.738 Info Building ROOT, CHAPTERS, menus using template: Metallic (open style)
16:45:07.381 Info DVD sectors written - video: 910627, audio: 64176, subtitle: 0
16:45:07.377 Info video #1 - Processed video frames: 161534 (134746 frames encoded, 26788 frames dropped, 0 frames duplicated)
16:17:01.916 ------------ +--> [audio #2 - ac3 audio, 48000Hz, Stereo, 192000 bps]
+-[audio aac main audio 2 Ch. 44100Hz , 128 Kbps]
+--> [video #1 - mpeg2video video, 720x576, yuv420p, 16x9, 25.00Fps, 2720Kbps]
+-[video h264 1280x720 16:9 yuv420p, 29.97Fps, 1743Kbps ]
Output file: C:\Users\Lee\Documents\ConvertXtoDVD\Monster Jam 2019\VIDEO_TS\VTS_01_1.VOB (DVD PAL)
Input file: C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2019.mp4
Video filters used:
- Output pixel format: YUV420P
- DeInterlace filter: VSO
- Upscale filter: Linear (VSO), Downscale filter: Linear (VSO). Fit method: letterbox (Padding: top: 0, bottom: 0, left: 0, right: 0. Cropping: top: 0, bottom: 0, left: 0, right: 0)
16:17:01.913 Info Chapters to generate: 18 (0h00m00s, 0h05m00s, 0h10m00s, 0h15m00s, 0h20m00s, 0h25m00s, 0h30m00s, 0h35m00s, 0h40m00s, 0h45m00s, 0h50m00s, 0h55m00s, 1h00m00s, 1h05m00s, 1h10m00s, 1h15m00s, 1h20m00s, 1h25m00s, )
16:17:01.910 Important Starting video encoding: [Memory load 57%] [Available virtual memory 1631 Mb.]
16:17:01.696 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2019.mp4
16:16:59.558 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2019.mp4
16:16:59.463 Group ******************** Titleset #1 - ~89 min. File: "Monster Jam 2019" -> VTS_01_1.VOB - DVD PAL ********************|GK_TITLESET|
16:16:59.186 Info Encoding options: Medium Project (Automatic)
16:16:59.183 Info Target size: 4.2 GB.
16:16:59.179 Important Setting queuer for DVD PAL output: [Wait: 0], [ld: 0], [Hd: 0], [MAM: 100], [RM: 100], [ALL: False]
16:16:59.175 Important 1 simultaneous conversions allowed
16:16:59.171 Info Don't log FFMpeg log events
16:16:59.167 ------------ ***************************************************Burn settings end****************************************************
16:16:59.164 Info Default speed selected: 4x
16:16:59.160 Info [ ] Delete vsomsl files after burn complete
16:16:59.157 Info [ ] Delete output folder after burn complete
16:16:59.154 Info [ ] Don't eject disc or open output folder in explorer, after burn complete
16:16:59.150 Info SAO setting: Automatic
16:16:59.147 Info [x] Burn result to disk / as ISO file in working folder
16:16:59.143 ------------ **************************************************Burn settings begin***************************************************
16:16:59.143 Group Encoding session started at 16:17:00: 5 titleset(s) to encode -> Cancelled after 01:07:39|GK_CONVERT_SESSION|
16:16:55.283 Info Removed segment: Monster Jam 2018
16:16:37.278 Info Conversion cancelled after 00:10:05
16:06:31.180 Info [ ] Loop playback
16:06:31.177 Info [ ] Play titles one after the other
16:06:31.175 Info [ ] Don't create title menu for single video
16:06:31.172 Info [x] Return to title menu after titleset playback
16:06:31.169 Info [ ] Skip root menu initially
16:06:31.166 Info [ ] Auto-start playback
16:06:31.163 Info Template: Metallic (open style), contains 4 page(s)
16:06:31.163 Group Video DVD menu options
16:06:31.160 Info Video DVD format: PAL (25 Fps)
16:06:31.158 Info Output target size : DVD-5 (4300 MB)
16:06:31.155 Info Number of core(s) used for encoding : 2
16:06:31.152 Info Number of core(s) used for decoding : 2
16:06:31.150 Info [ ] Use 2 pass encoding
16:06:31.147 Info [ ] Use best video quality settings
16:06:31.143 Info [ ] Use hardware decoding (if possible)
16:06:31.141 Info Max simultaneous conversions: 1
16:06:31.141 Group Advanced encoding options
16:06:29.904 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Crazy Grave Digger Moments.mp4
16:06:29.688 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Grave Digger 30th Anniversary.mp4
16:06:29.462 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2021.mp4
16:06:29.086 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2020.mp4
16:06:28.661 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2019.mp4
16:16:36.223 Error Error while encoding file: VTS_01_1.VOB
16:10:26.011 Error [decoder][aac]: decode_band_types: Input buffer exhausted before END element found
16:16:36.220 Group FFmpeg Decoder: "C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2018.mp4"
16:06:31.315 ------------ +--> [audio #2 - ac3 audio, 48000Hz, Stereo, 192000 bps]
+-[audio aac main audio 2 Ch. 44100Hz , 128 Kbps]
+--> [video #1 - mpeg2video video, 720x576, yuv420p, 16x9, 25.00Fps, 2350Kbps]
+-[video h264 1280x720 16:9 yuv420p, 150.00Fps, 2067Kbps ]
Output file: C:\Users\Lee\Documents\ConvertXtoDVD\Monster Jam 2018\VIDEO_TS\VTS_01_1.VOB (DVD PAL)
Input file: C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2018.mp4
Video filters used:
- Output pixel format: YUV420P
- DeInterlace filter: VSO
- Upscale filter: Linear (VSO), Downscale filter: Linear (VSO). Fit method: letterbox (Padding: top: 0, bottom: 0, left: 0, right: 0. Cropping: top: 0, bottom: 0, left: 0, right: 0)
16:06:31.312 Info Chapters to generate: 5 (0h00m00s, 0h05m00s, 0h10m00s, 0h15m00s, 0h20m00s, )
16:06:31.309 Important Starting video encoding: [Memory load 56%] [Available virtual memory 1642 Mb.]
16:06:31.192 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2018.mp4
16:06:28.313 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2018.mp4
16:06:28.270 Group ******************** Titleset #1 - ~23 min. File: "Monster Jam 2018" -> VTS_01_1.VOB - DVD PAL ********************|GK_TITLESET|
16:06:27.951 Info Encoding options: Long Project (Automatic)
16:06:27.948 Info Target size: 4.2 GB.
16:06:27.944 Important Setting queuer for DVD PAL output: [Wait: 0], [ld: 0], [Hd: 0], [MAM: 100], [RM: 100], [ALL: False]
16:06:27.942 Important 1 simultaneous conversions allowed
16:06:27.938 Info Don't log FFMpeg log events
16:06:27.935 ------------ ***************************************************Burn settings end****************************************************
16:06:27.933 Info Default speed selected: 4x
16:06:27.930 Info [ ] Delete vsomsl files after burn complete
16:06:27.927 Info [ ] Delete output folder after burn complete
16:06:27.925 Info [ ] Don't eject disc or open output folder in explorer, after burn complete
16:06:27.922 Info SAO setting: Automatic
16:06:27.920 Info [x] Burn result to disk / as ISO file in working folder
16:06:27.917 ------------ **************************************************Burn settings begin***************************************************
16:06:27.917 Group Encoding session started at 16:06:29: 6 titleset(s) to encode -> Cancelled after 00:10:05|GK_CONVERT_SESSION|
16:02:26.364 Info Conversion cancelled after 00:16:18
15:46:07.608 Info [ ] Loop playback
15:46:07.606 Info [ ] Play titles one after the other
15:46:07.604 Info [ ] Don't create title menu for single video
15:46:07.601 Info [x] Return to title menu after titleset playback
15:46:07.599 Info [ ] Skip root menu initially
15:46:07.597 Info [ ] Auto-start playback
15:46:07.595 Info Template: Metallic (open style), contains 4 page(s)
15:46:07.595 Group Video DVD menu options
15:46:07.592 Info Video DVD format: PAL (25 Fps)
15:46:07.590 Info Output target size : DVD-5 (4300 MB)
15:46:07.588 Info Number of core(s) used for encoding : 2
15:46:07.586 Info Number of core(s) used for decoding : 2
15:46:07.583 Info [ ] Use 2 pass encoding
15:46:07.581 Info [ ] Use best video quality settings
15:46:07.579 Info [ ] Use hardware decoding (if possible)
15:46:07.576 Info Max simultaneous conversions: 2
15:46:07.576 Group Advanced encoding options
15:46:06.369 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Crazy Grave Digger Moments.mp4
15:46:06.197 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Grave Digger 30th Anniversary.mp4
15:46:06.007 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2021.mp4
15:46:05.714 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2020.mp4
16:02:24.975 Warning File encoding cancelled by user: VTS_02_1.VOB
15:46:12.104 ------------ +--> [audio #2 - ac3 audio, 48000Hz, Stereo, 192000 bps]
+-[audio aac main audio 2 Ch. 44100Hz , 128 Kbps]
+--> [video #1 - mpeg2video video, 720x576, yuv420p, 16x9, 25.00Fps, 2350Kbps]
+-[video h264 1280x720 16:9 yuv420p, 29.97Fps, 1743Kbps ]
Output file: C:\Users\Lee\Documents\ConvertXtoDVD\Monster Jam 2018\VIDEO_TS\VTS_02_1.VOB (DVD PAL)
Input file: C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2019.mp4
Video filters used:
- Output pixel format: YUV420P
- DeInterlace filter: VSO
- Upscale filter: Linear (VSO), Downscale filter: Linear (VSO). Fit method: letterbox (Padding: top: 0, bottom: 0, left: 0, right: 0. Cropping: top: 0, bottom: 0, left: 0, right: 0)
15:46:12.102 Info Chapters to generate: 18 (0h00m00s, 0h05m00s, 0h10m00s, 0h15m00s, 0h20m00s, 0h25m00s, 0h30m00s, 0h35m00s, 0h40m00s, 0h45m00s, 0h50m00s, 0h55m00s, 1h00m00s, 1h05m00s, 1h10m00s, 1h15m00s, 1h20m00s, 1h25m00s, )
15:46:12.095 Important Starting video encoding: [Memory load 44%] [Available virtual memory 1618 Mb.]
15:46:11.744 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2019.mp4
15:46:05.352 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2019.mp4
15:46:05.256 Group ******************** Titleset #2 - ~89 min. File: "Monster Jam 2019" -> VTS_02_1.VOB - DVD PAL ********************|GK_TITLESET|
16:02:23.865 Error Error while encoding file: VTS_01_1.VOB
15:52:49.928 Error [decoder][aac]: decode_band_types: Input buffer exhausted before END element found
16:02:23.830 Group FFmpeg Decoder: "C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2018.mp4"
15:46:07.740 ------------ +--> [audio #2 - ac3 audio, 48000Hz, Stereo, 192000 bps]
+-[audio aac main audio 2 Ch. 44100Hz , 128 Kbps]
+--> [video #1 - mpeg2video video, 720x576, yuv420p, 16x9, 25.00Fps, 2350Kbps]
+-[video h264 1280x720 16:9 yuv420p, 150.00Fps, 2067Kbps ]
Output file: C:\Users\Lee\Documents\ConvertXtoDVD\Monster Jam 2018\VIDEO_TS\VTS_01_1.VOB (DVD PAL)
Input file: C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2018.mp4
Video filters used:
- Output pixel format: YUV420P
- DeInterlace filter: VSO
- Upscale filter: Linear (VSO), Downscale filter: Linear (VSO). Fit method: letterbox (Padding: top: 0, bottom: 0, left: 0, right: 0. Cropping: top: 0, bottom: 0, left: 0, right: 0)
15:46:07.738 Info Chapters to generate: 5 (0h00m00s, 0h05m00s, 0h10m00s, 0h15m00s, 0h20m00s, )
15:46:07.735 Important Starting video encoding: [Memory load 42%] [Available virtual memory 1651 Mb.]
15:46:07.620 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2018.mp4
15:46:05.046 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2018.mp4

Have a look at a previous post of mine to see if it helps: viewtopic.php?f=56&t=21667&p=106524#p106524
Good luck

I'm not entirely sure how to read the CXD log files, but it seems the program is choking on a particular file. Grave Digger 30th Anniversary.mp4.


I would try converting it from an MP4 to another file format like MKV with a free program called AVIDeMux. I'd also change the Video codec to x264. Whenever I get a file CXD won't process, I try converting it to another format and another video codec to see if that helps.

@eddie11013 -

Thanks for your reply and looking at your previous post it mainly refers to subtitles being the issue. As far as I know there are no subtitles added to my conversion list.

@dbminter -

Thanks also for your reply. I too am not an expert of reading and understanding the log files, however I did try your suggestion and converted the file into MKV but unfortunately came across the same problem....please see below:

17:30:09.750 Error [decoder][h264]: mmco: unref short failure
^^^Repeated 6 Times in 39 second(s) 81 millisecond(s)^^^
17:30:48.831 Group FFmpeg Decoder: "C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2019.mp4"
16:58:37.308 Group Crazy Grave Digger Moments
16:58:37.138 Group Grave Digger 30th Anniversary (MKV)
16:58:36.997 Group Monster Jam 2021
16:58:36.811 Group Monster Jam 2020
16:58:36.564 Group Monster Jam 2019
18:06:42.118 Info Conversion cancelled after 01:08:03
16:58:38.207 Info [ ] Loop playback
16:58:38.205 Info [ ] Play titles one after the other
16:58:38.203 Info [ ] Don't create title menu for single video
16:58:38.201 Info [x] Return to title menu after titleset playback
16:58:38.200 Info [ ] Skip root menu initially
16:58:38.198 Info [ ] Auto-start playback
16:58:38.196 Info Template: Metallic (open style), contains 4 page(s)
16:58:38.196 Group Video DVD menu options
16:58:38.194 Info Video DVD format: PAL (25 Fps)
16:58:38.193 Info Output target size : DVD-5 (4300 MB)
16:58:38.191 Info Number of core(s) used for encoding : 2
16:58:38.189 Info Number of core(s) used for decoding : 2
16:58:38.188 Info [ ] Use 2 pass encoding
16:58:38.186 Info [ ] Use best video quality settings
16:58:38.185 Info [ ] Use hardware decoding (if possible)
16:58:38.183 Info Max simultaneous conversions: 1
16:58:38.181 Group Advanced encoding options
16:58:37.280 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Crazy Grave Digger Moments.mp4
16:58:37.129 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Grave Digger 30th Anniversary (MKV).mkv
18:06:41.526 Error Error while encoding file: VTS_03_1.VOB
18:04:14.993 Error [decoder][aac]: decode_band_types: Input buffer exhausted before END element found
18:06:41.524 Group FFmpeg Decoder: "C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2021.mp4"
17:55:52.401 ------------ +--> [audio #2 - ac3 audio, 48000Hz, Stereo, 192000 bps]
+-[audio aac main audio 2 Ch. 44100Hz , 128 Kbps]
+--> [video #1 - mpeg2video video, 720x576, yuv420p, 16x9, 25.00Fps, 2810Kbps]
+-[video h264 1920x1080 16:9 yuv420p, 150.00Fps, 3913Kbps ]
Output file: C:\Users\Lee\Documents\ConvertXtoDVD\Monster Jam 2019\VIDEO_TS\VTS_03_1.VOB (DVD PAL)
Input file: C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2021.mp4
Video filters used:
- Output pixel format: YUV420P
- DeInterlace filter: VSO
- Upscale filter: Linear (VSO), Downscale filter: Linear (VSO). Fit method: letterbox (Padding: top: 0, bottom: 0, left: 0, right: 0. Cropping: top: 0, bottom: 0, left: 0, right: 0)
17:55:52.398 Important Starting video encoding: [Memory load 70%] [Available virtual memory 1646 Mb.]
17:55:52.287 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2021.mp4
16:58:36.964 Verbose FFmpeg Opening file C:\Users\Lee\Desktop\Monster Trucks\Monster Jam 2021.mp4
16:58:36.958 Group ******************** Titleset #3 - ~21 min. File: "Monster Jam 2021" -> VTS_03_1.VOB - DVD PAL ********************|GK_TITLESET|

Try converting each file in CXD one at a time on their own, saving the VIDEO_TS output each time somewhere. Then, after each conversion, try importing each VIDEO_TS.IFO file to add each stream. This will 1.) determine which file is the problem, one at a time 2.) if each file converts on its own, then you've got a converted source for each file to import. Because, the problem may not be that one Grave Digger file. For instance, I came across a project recently where I added a bunch of files, and the project completed, but wouldn't play. However, trying to add each file one at a time produced an error on each file. So, CXD had a bug where it processed the files in a batch whereas each file was not convertible.

Took your advice & converted each file separately and it turns out the problem wasn't the Grave Digger one.
I converted the problem file to a different format and instead of re-adding the TS files, I re-ran the whole conversion again to be on the safe side and voila all sorted.
All I can say is much appreciated for your help

As I said, reading the log file was a bit like cuneiform. :) I wasn't entirely sure the Grave Digger file was problematic. Turns out it wasn't. Which is why I do the troubleshooting of trying to convert each individual file one by one to see if there's a corrupt file in there somewhere.