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View Full Version : Time Code / GOP / File Header Problems


marcmelk
31st May 2005, 02:59
Hi

I have a client that is sending DVD content that needs to be transcoded to WMV. The client does not want the content to be transcoded to one continuous file, but usually asks for the content to be broken down into a series of segments. This means that I usually pull the title and credits off, and then pull the chapters that make up the segment, and final join the ripped VOB files back to create a title, segment, and end credits (in a single VOB File). I may take one full DVD and break it down to three or four different segments.

I run DVD Decrypter in IFO mode so I can selectively pull the chapters off.

Here is my issue. Over the past few weeks I have been having an issue with the final VOB file after I have joined all the parts. If I try to play the VOB file in Windows Media Player, the player will usually play the file but the time code / duration of the clip is damaged and I am unable to seek in the file.

If I try to transcode the file into WMV (using ProCoder 2.0 or Windows Media Encoder) the encoding system usually fails since the duration/timecode of the file is broken. The transcode jumps to the 49% point and then stalls, ending with an error.

Currently my only fix is to demux and remux the file after I pull it off the DVD.

What am I doing wrong? I am thinking that the issue is with the way that I am doing the join on the VOB (tried some freeware and trialware tools, and have also tried command line copy /b). By doing a simple join am I causing this issue and thus I need to perform some type of complex join?

Thanks for the help.