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Old 5 Feb 2003, 06:45 PM   #1
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Default need a program that fixes headers of m2v files

i have encountered problem and i can't define why this happens. To make it clear: i have a few dvd's that i demuxed into video and sound respectively. But the m2v stream demuxes with some errors in header. These DVD's don't want to play on some DVD set-top players.
I think i need a program akin HeadAC3he, but working with video - which fixes bad headers . Something like it I saw for Mac platform - it's called mpeg guillotine, but I need for PC.

Once more: the reason why it happens isn't quite clear to me. I only described the symptoms. Have any suggestions?
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Old 11 Feb 2003, 02:09 AM   #2
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Very pity that nobody knows. I've already found out a solution - thanks to jankster from doom9.org forum - so I will tell how to fix m2v headers - maybe someone will find this information useful. The text further down the line is what he wrote:

"Every once in a while I get corrupt header data or other weird problems. I use a HEX editor to fix my problems. I use XVI32, but there are lots of them. Look at a good VOB with VOBEdit to see how the HEX data (packets)are formatted. Another "tool" I use to merge AC3 or M2V files is the DOS command line "copy /b file1 + file2 outputfile" works perfect everytime provided the source files are clean, you don't need a fancy GUI program to merge files.

Below I paste my hex editor note:


Strip corrupt header in a VOB

In a hex editor, find the first “00 00 01 BF” sequence, this is a NAV Pack. Back up a few locations till you find “00 00 01 BA”, this is the start, delete everything back from this point. Rebuild the IFO and then VOB’s.


Change all vob/cell id’s in a VOB

Find and replace:

VOB 1, ID 1
00 01 00 01 00

TO

VOB 2, ID 26
00 02 00 1A 00


Change “progressive sequence” in a VOB I-frame

Find and replace:

progressive sequence = yes
B5 14 8A 00 01 00 00

TO

progressive sequence = no
B5 14 82 00 01 00 00

The Jankster"

That's all, folks!!
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Old 12 Feb 2003, 03:05 AM   #3
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You might try the following (which was available from the DVD Digest link at the top of this page):

http://www.digital-digest.com/dvd/do.../restream.html
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Old 15 Feb 2003, 12:42 AM   #4
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Quote:
Originally posted by setarip
You might try the following (which was available from the DVD Digest link at the top of this page):

http://www.digital-digest.com/dvd/do.../restream.html
Thanks, Setarip! But "you may try" is not the same to "really try". I know this program, but it's not helpful in my case. It can help when I want to fake dvd authoring programs, if i get an error message "different bitrate" while trying to merge 2 .m2v's with from different source. Anyway, thanks for your reply, but I posted a correct answer on my question.
Regards, slig
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