Hello,
I have been been using DVDFab (both v9.1.6.3 and v9.1.6.4) and I have had a serious problem occur where my attempt to copy my DVD fails. This failure happens quite alot (about 25% of the time). I don't know if it's my computer, my DVDFab settings, or if there is some other problem. I even updated my DVDFab to v9.1.6.4 this morning and the first DVD I tried to backup also failed.

Here is the problem:
I use DVDFab to backup my DVDs to my laptop hard drive in a VIDEO_TS folder. I set DVDFab to make a Full Disc copy and I start the program. 75% of the time, DVDFab works perfectly and it gives me the message that the copy was "Successful". However, about 25% of the time, DVDFab fails. The program appears to work normally until it is almost at the end of the copying process. However, instead of stopping and giving me the message that the copying was successful, it freezes. DVDFab freezes and no matter what button I push on the interface, nothing happens. I have to go to the "Task Manager" to manually close the DVDFab program otherwise, it wouldn't even close. After I close DVDFab, when I restart the program to make my backup, it does work successfully. But I dislike having to redo the copying process about 25% of the time DVDFab fails so I would like to find out what may be the cause of this issue and fix it.

I will attach the log files of the most recent failed attempt to backup one of my DVDs. The DVD I tried to backup is called The Clowns and was directed by Fellini and released on DVD in 2011 so DVDFab can easily make the backup copy. I just want to know why it froze in this case so I can stop it from happening in the future. Thank you.
Al

DVDFab 9.1.6.4 (2014/08/21 10:15:09)

0m 00.01s: Init Public log : enabled.
0m 00.01s: Init Private log : finish.
0m 00.01s: App info: 2014-8-21
0m 00.01s: App info: 9.1.6.4 9164 Official
0m 00.02s: Init CrashReportSettings : disabled.
0m 00.02s: Init DVDInfo_Log : enabled.
0m 00.02s: Init Qt_Log : disabled.
0m 00.10s: Profile Manager :: Begin Load Profile
0m 00.10s: Qt Translator file load success
0m 00.10s: App info: client type 10.
0m 00.12s: Fabplay load: preload successful.
0m 00.18s: Fabplay load: Load successful.
0m 00.19s: Init process: Transfer settings successful.
0m 00.19s: info: fabcheck logpath= C:/Users/Al/Documents/DVDFab9/Log/
0m 00.19s: info: fab_check_gpu is running ...
0m 00.43s: info: fab_check_gpu run successful
0m 00.43s: info: recommand= 851968, Shrink support= 1, enable= 1, cuda_cap= 0 , cpu_count= 8
0m 00.44s: GPU check: GPUAccelerate-851973
0m 00.44s: GPU check: GPUAccelerate setting-851968, 851968
0m 00.44s: GPU check: CUDA cap-0
0m 00.44s: GPU check: Support coreavc decode-0
0m 00.44s: GPU check: Lighting shrink status-1, 1
0m 00.44s: GPU check: Graphics info 1: Intel(R) HD Graphics 4600 : 10.18.10.3345 :
0m 00.45s: Init process: Load config successful.
0m 00.45s: Init process: Windows os type is 64bit System Windows 8.
0m 00.45s: Init process: command line in is
0m 00.51s: Reg check: Option check status-Failed
0m 00.51s: Reg check: ( HD Decrypter:1:0 )-( DVD to DVD (Gold):0:0 )-( DVD to DVD:0:0 )-( DVD to Mobile:0:0 )-( Blu-ray to Blu-ray:0:0 )-( Blu-ray to Mobile:0:0 )-( File to Mobile:0:0 )-( Blu-ray to DVD:0:0 )-( File to DVD:0:0 )-( File to Blu-ray:0:0 )-( File Mover:1:0 )-( Blu-ray to 3D:0:0 )-( 2D to 3D:0:0 )-( Blu-ray Decrypt:1:0 )-( DVD Decrypt:1:0 )-
0m 00.51s: App info: language type ENU.
0m 00.51s: Reg check: Start get sys number.
0m 00.52s: Reg check: Serial number is: 28-e3-47-d5-b0-82:28-e3-47-d5-b0-82:00-8c-fa-99-5b-ff
0m 00.52s: Reg check: Connect type is: 0
0m 01.75s: Profile Manager :: End Load Profile
0m 08.47s: Reg check: Times of connecting error is: 0
0m 08.47s: Reg check: Parse string: ( 2:8260762964 )( 11:8260762964 )( 1:25 )( OV:9164 )( BV:9162 )( S:058efd23a4f90fa713d92275b0013d4c
0m 08.55s: Reg check: thread exit normal.
0m 08.58s: Reg check: Option check status-NewWork
0m 08.59s: Reg check: ( HD Decrypter:1:0 )-( DVD to DVD (Gold):1:0 )-( DVD to DVD:1:1 )-( DVD to Mobile:1:1 )-( Blu-ray to Blu-ray:1:0 )-( Blu-ray to Mobile:1:0 )-( File to Mobile:1:0 )-( Blu-ray to DVD:1:0 )-( File to DVD:1:0 )-( File to Blu-ray:1:0 )-( File Mover:1:0 )-( Blu-ray to 3D:1:0 )-( 2D to 3D:1:0 )-( Blu-ray Decrypt:1:0 )-( DVD Decrypt:1:0 )-
0m 08.59s: Reg check: connect successful and result code is 1.
0m 08.59s: Reg check: End check info.
0m 08.59s: Export Blu-ray source information report : enabled
0m 08.59s: Init process: Init GPU settings successful.
0m 08.64s: Init preview: Begin init preview play engine.
0m 08.64s: Init preview: Begin init preview play engine(Internal).
0m 08.72s: Init preview: Init internal engine successful.
0m 09.13s: Burn engine: start init.
0m 09.20s: bd set region A
0m 09.20s: Burn engine: engine type-0.
0m 09.20s: Burn engine: writer count 1.
0m 09.21s: Burn engine: 0- D:\ [TSSTcorp CDDVDW SU-208FB TF01 (Scsi)].
0m 09.21s: Burn engine: end init.
0m 09.86s: Init process: Init setting page successful.
0m 09.86s: QtLog Mode = false
0m 09.86s: Show UI Step 2
0m 10.14s: Show UI Step 3
0m 10.14s: Start show MainUI.
0m 10.14s: UI manager: switch to Copy mode.
0m 10.78s: Init process: init main ui successful.
0m 10.82s: Init process: show main ui successful.
0m 10.82s: DriveX msg: Init driveX D with I/O mode: 0
0m 10.82s: opening drive D
0m 10.83s: opened i/o
0m 10.83s: got media type 4
0m 14.13s: got max lba 3887795
0m 14.13s: got disc type 10
0m 14.17s: type DVD-VIDEO
0m 14.18s: volume label THE_CLOWNS
0m 14.18s: DriveX msg: add media in driveX D.
0m 14.18s: DriveX msg: send open media msg to thread for driveX D.
0m 14.18s: Source manager:open source flag:1,1,1,1
0m 14.18s: Source manager:open source flag:1,1,1,1
0m 14.18s: Source manager: add source id 0.
0m 14.19s: Source open status:DVD Yes, 2231-10-11
0m 14.19s: Source open status:BD Yes, 2158-1-1
0m 14.19s: internal path D:/VIDEO_TS/
0m 14.20s: got copyright 1 40
0m 14.20s: key method 0
0m 14.85s: got udf/iso
0m 16.43s: got discinfo
0m 16.44s: pathplayer enabled
0m 17.05s: button: vts_1 menu_1 pgc_7 cell_1 sector_196 count_4
0m 28.18s: button: vts_1 menu_1 pgc_8 cell_1 sector_24958 count_8
0m 28.21s: button: vts_1 menu_1 pgc_9 cell_1 sector_25024 count_9
0m 28.27s: button: vts_1 menu_1 pgc_10 cell_1 sector_25093 count_9
0m 28.35s: button: vts_1 menu_1 pgc_11 cell_1 sector_25157 count_4
0m 29.57s: button: vts_1 menu_1 pgc_14 cell_1 sector_25346 count_1
0m 29.64s: button: vts_1 menu_1 pgc_12 cell_1 sector_25226 count_2
0m 29.72s: button: vts_1 menu_1 pgc_13 cell_1 sector_25286 count_2
0m 31.18s: got dvdinfo
0m 31.18s: opened dvd
0m 31.25s: Source manager: open successful.
0m 31.29s: Work manager: create DVD fulldisc work 0 with source 0 and uiinfo 0.
0m 31.59s: Source manager:open source flag:1,1,1,1
0m 59.17s: UILog:OnMsgToolbar_Start
0m 59.17s: UILog:Msg Start : ready start
0m 59.18s: UILog:Msg Start : start test run work
0m 59.18s: UILog:right button to null, work falg = -1
0m 59.19s: UILog:Msg Start : run work
0m 59.19s: UILog:Run current Work.
0m 59.19s: UILog:Begin work copy or converter.
0m 59.19s: UILog:start running at thread.
0m 59.19s: UILog:return flag at start running at thread ok.
0m 59.24s: UILog:MsgWork:WorkStatus_Start
0m 59.32s: DVD Copy
0m 59.32s: Source: D:/
0m 59.32s: SourceSize: 7591 MB
0m 59.32s: OutputSize: 8100 MB
26m 54.11s: UILog:MsgWork:current work finish : 3
26m 55.58s: UILog:Run Work to end.
26m 55.59s: connect 0 : start.
26m 56.69s: connect 0 : 1:1

That is the last line on the log and DVDFab freezes at this point. Please help me with any ideas to stop this freezing problem. Thank you.
Al