Time or timestamp wrong in output file

[guest]

Summary of the bug:

Time or timestamp wrong in output file.
I'd like to copy several vobs with subtitle into one.
iirc the multiple input is not supported but I get wrong output too if I try with only one input.

How to reproduce:

ffmpeg.exe -i dcef6b7dd5b4e80c445b31ca5591e1a7.vob -c copy -scodec copy out.vob
ffmpeg version N-53934-gb77e58a Copyright (c) 2000-2013 the FFmpeg developers
  built on Jun  8 2013 17:56:02 with gcc 4.7.3 (GCC)

[Carl Eugen Hoyos]

Please provide the command line together with the complete, uncut console output to make this a valid ticket and please point us to an input sample that allows to reproduce the problem.

[guest]

Sorry, the error is in the input file and the output is the good.

Could you tell me please what is that tbc and why differs in input and output?

Input #0, mpeg, from 'pipe:':

Duration: N/A, start: 0.287267, bitrate: 256 kb/s

Stream #0:0[0x1bf]: Data: dvd_nav_packet
Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:2[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 256 kb/s
Stream #0:3[0x20]: Subtitle: dvd_subtitle

[svcd @ 00000000024c9ca0] VBV buffer size not set, muxing may fail
Output #0, svcd, to 'out.vob':

Metadata:

encoder : Lavf55.8.102
Stream #0:0: Video: mpeg2video, yuv420p, 720x576 [SAR 64:45 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 25 tbc
Stream #0:1: Audio: ac3, 48000 Hz, stereo, 256 kb/s
Stream #0:2: Subtitle: dvd_subtitle

[Carl Eugen Hoyos]

Please do not post an extract of the console output, instead please post the command line together with the complete, uncut console output.