2 Pass Encoding produces always a useless file

[Pralaya]

Hello, I have a serious problem with Video Converter:
no matter which video file I choose to convert, or in which format, every time I select "2 Pass Encoding", after the the 1st pass the process jump at the end saying "Process Completed Successfully!", but producing a usuless file of zero byte.
This happens always.
I have already selected Video Decoder on software on the option tab, so no CUDA acceleration.
Any other help? Suggestions?

Also using 1 Pass Encoding I have very often A/V Synch issues from the middle of the file until the end.

I will post a log for the 2 Pass Encoding problem.

**************************************************
DVDFab 8.2.1.3 (2012/10/01 22:30:05)

0m 03.18s: GPUAccelerate: 12351
0m 03.18s: CUDA cap: 1
0m 03.18s: Support coreavc decode: 0
0m 03.18s: Graphics info: NVIDIA GeForce GT 425M : 3.20 : 2.1
0m 03.18s: Qt Translator file load success
0m 03.32s: Load config successful.
0m 04.21s: Init profile data driver sucessful.
0m 07.44s: Init GPU settings sucessful.
0m 07.44s: option dvd2dvd 0 dvd2mobile 1 bluray2bluray 1 bd2mobile 1 bd23d 1 bd2dvd 1 file2dvd 1 file2bluray 1 file2mobile 1 filemover 1
0m 07.45s: dvd2dvd:dvd2mobile:blu-ray2blu-ray:blu-ray2mobile:blu-ray23d:blu-ray2dvd:file2mobile:file2dvd:file2bluray:
0m 07.95s: Config ExBar successful.
0m 07.95s: dvd2dvd have 8 elements.
0m 08.05s: dvd2mobile have 31 elements.
0m 08.93s: blu-ray2blu-ray have 4 elements.
0m 08.97s: blu-ray2mobile have 20 elements.
0m 09.50s: blu-ray23d have 7 elements.
0m 09.65s: blu-ray2dvd have 1 elements.
0m 09.68s: file2mobile have 30 elements.
0m 10.59s: file2dvd have 1 elements.
0m 10.62s: file2bluray have 1 elements.
0m 10.98s: Config work ui controls successful.
0m 24.66s: Init burn engine successful.
0m 24.85s: StartNotify successful.
0m 24.85s: opening drive D
0m 24.86s: opened i/o
0m 24.86s: got media type 4
0m 27.93s: got disc type 10
0m 27.94s: got max lba 3394045
0m 28.01s: type DVD-VIDEO
0m 28.02s: volume label LOLITA
0m 28.19s: got copyright 1 f5
0m 28.75s: got udf/iso
0m 29.61s: user cancelled
0m 29.63s: got discinfo
0m 29.63s: failed to open 1
2m 35.98s: info, try to open file C:/Users/Federico/Desktop/Paprika.mp4
2m 36.46s: info: open successed, iformat = QuickTime/MPEG-4/Motion JPEG 2000 format
2m 36.48s: info: get file-type(mov,mp4,m4a,3gp,3g2,mj2), which is not in media format list
2m 37.41s: 513.14 : video codec(28,828601953) try to connect inter-codec failed
2m 39.66s: WorkAttr::Init Start
2m 39.70s: WorkAttr::Init OK: iPad.h264
3m 30.46s:


------ begin mobile work(1/1) ------


3m 30.48s: info: create config(3)
3m 30.48s: info: convert profile(iPad.h264)
3m 30.49s: info: file (.mp4),3D(0)
3m 30.49s: info: streams((0.2)(1.2))
3m 30.52s: info: not set correct fourcc for video(28)
3m 30.52s: info: set output video frame_rate(25/1)
3m 30.57s: info: enable multi-thread software decoder
3m 31.60s: warning: h264 encode macroblocks per second(55400) exceed the standard(40500), video size(1024x554, 25), specify profile(0)-level(30)
3m 31.60s: info: h264_encode: encode param profile(1) level(31) bitrate(2128)
17m 52.43s: info: enable multi-thread software decoder
17m 52.46s: warning: h264 encode macroblocks per second(55400) exceed the standard(40500), video size(1024x554, 25), specify profile(0)-level(30)
17m 52.46s: info: h264_encode: encode param profile(1) level(31) bitrate(2128)
18m 23.84s:


------ finish mobile work ------
**************************************************

Thank you very much for any kind of support.

[90312]

two pass is of little use, just use one pass and see if the result is better.

[Pralaya]

two pass is of little use, just use one pass and see if the result is better.

Thank you, I will follow your suggestion.

Unfortunately I get always A/V Synch problems converting files I have ripped with DVDFav Blu-Ray Ripper, using generic.h264.mp4.acc profile; any advise?

Again, thanks.